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SELECTIONS: Products : HEADERS : CERAMIC : CHEVY/GMC
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THY-350-C
1968-1977 CORVETTE, 283-400, NO SIDE PIPES
List Price: $761.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! ...
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THY-367Y-C
1973-1991 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, 2WD
List Price: $748.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! ...
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THY-316Y3-S
1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITH HEAT RISER, 3 inch CAT. INLET, WITH SMOG FITTINGS
List Price: $902.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-301Y-FED-C
CERAMIC COATING GMC P/UP 4WD 350 VORTEC 1996-1998
Our Price: $1002.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-327Y-C
CERAMIC COATING, 1928-1938 ROADSTER/STREET RODS, STOPS AT END OF THE BLOCK; 1955-1957 TRUCK, BLOCKHUGGER, 2/4WD; 283-401
List Price: $776.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! ...
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THY-311Y-C
CERAMIC COATING, 1955-1957, 265-400, STOCK FRONT MOUNTS OR DANCHUCK KIT
List Price: $795.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-300Y-C
CERAMIC COATING, 1961-1966 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, AUTOMATIC ONLY, 2/4WD...
List Price: $836.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1961-1966 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, AUTOMATIC ONLY, 2/4WD; 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, 2WD
1961-1966: AUTOMATIC ONLY. MAY REQUIRE ALT./GEN. BRACKET....
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THY-300Y-S-C
CERAMIC COATING, 1961-1966 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, AUTOMATIC ONLY, 2/4WD...
List Price: $868.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING 1961-1966 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, AUTOMATIC ONLY, 2/4WD; 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, 2WD, WITH SMOG FITTINGS
1961-1966: AUTOMATIC ONLY. MAY REQUIRE ALT/GEN BRACKET.
1973-1987: 2WD ONLY....
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THY-300Y-DA-C
CERAMIC COATING, 1961-1966 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, AUTOMATIC ONLY, 2/4WD; 1973-1987...
List Price: $849.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1961-1966 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, AUTOMATIC ONLY, 2/4WD; 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY 283-400, 2WD, WITH DUAL AIR FITTINGS
1961-1966: AUTOMATIC ONLY. MAY REQUIRE ALT?GEN BRACKET.
1973-1987: 2WD ONLY....
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THY-331-C
CERAMIC COATING, 1965-1972 CUTLASS/442, 400-455, NO CONVERTIBLES, NO 350 ENG.
List Price: $874.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! ...
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THY-376Y1-C
CERAMIC COATING, 1967-1969, 283-400, Z-28, NO COLUMN SHIFT, NO A/C
List Price: $833.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-376Y1-S-C
CERAMIC COATING, 1967-1969, 283-400, Z-28, NO COLUMN SHIFT, NO A/C, WITH SMOG FITTINGS
List Price: $870.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-372Y-C
CERAMIC COATING, 1967-1972 TRUCK/SUBURBAN, 283-400, 2/4WD
List Price: $832.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-372Y-S-C
CERAMIC COATING, 1967-1972 TRUCK/SUBURBAN, 283-400, 2/4WD, WITH SMOG FITTINGS
List Price: $864.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-313-C
CERAMIC COATING, 1967-1974 CAMARO, 1968-1974 NOVA, 1966-1974 CHEVELLE/EL CAMINO, 396-454, AUTO ONLY
List Price: $783.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! ...
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THY-313-S-C
CERAMIC COATING, 1967-1974 CAMARO, 1968-1974 NOVA, 1966-1974 CHEVELLE/EL CAMINO, 396-454, AUTO ONLY, WITH SMOG FITTINGS
List Price: $887.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! ...
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THY-341-C
CERAMIC COATING, 1967-1974 FIREBIRD/TRANS AM; 1970-1974 GRAND PRIX; 1964-1973 GTO/LEMANS...
List Price: $817.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1967-1974 FIREBIRD/TRANS AM; 1970-1974 GRAND PRIX; 1964-1973 GTO/LEMANS, STOCK MOTOR MOUNTS; 326-455 (PONTIAC MOTOR), 3 TUBE HEADER, D-PORTS ONLY...
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THY-375Y-C
CERAMIC COATING, 1967-1985 CAMARO; 1968-1977 NOVA; 1968-1985 CHEVELLE/EL CAMINO, 265-400
List Price: $826.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-375Y-S-C
CERAMIC COATING, 1967-1985 CAMARO; 1968-1977 NOVA; 1968-1985 CHEVELLE/EL CAMINO, 265-400, WITH SMOG FITTINGS
List Price: $858.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-332-C
CERAMIC COATING, 1968-1974 350 OLDS., NO ENG. SWAPS, NO 455 ENG., NO TYPE-S
List Price: $874.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! ...
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THY-350-S-C
CERAMIC COATING, 1968-1977 CORVETTE, 283-400, NO SIDE PIPES, WITH SMOG FITTINGS
List Price: $792.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-315Y-DA-C
CERAMIC COATING, 1970-1987 G-SERIES VANS/MINI MOTORHOME, 283-400, WITH DUAL AIR FITTINGS
List Price: $887.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-315Y-S-C
CERAMIC COATING, 1970-1987 G-SERIES VANS/MINI MOTORHOME, 283-400, WITH SMOG FITTINGS
List Price: $865.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-315Y-C
CERAMIC COATING, 1970-1987 G-SERIES VANS/MINI MOTORHOME, 283-401
List Price: $831.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-380-C
CERAMIC COATING, 1971-1994 PASSENGER CARS; 1976 CAMARO; 1978-1979 NOVA/CHEVY II; 1964-1987 CHEVELLE/EL CAMINO...
List Price: $727.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1971-1994 PASSENGER CARS; 1976 CAMARO; 1978-1979 NOVA/CHEVY II; 1964-1987 CHEVELLE/EL CAMINO; 1970-1987 MONTE CARLO, 265-400, 4:1, MAX GROUND CLEARANCE...
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THY-355Y-C
CERAMIC COATING, 1973-1978, 403-455 OLDS., FRONT WHEEL DRIVE, w/ TANDEM REAR WHEELS, NO REVCON
List Price: $902.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-367Y1-C
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, WITH HEAT RISER, 2WD
List Price: $1027.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-367Y1-S-C
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, WITH HEAT RISER, 2WD...
List Price: $1074.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, WITH HEAT RISER, 2WD, WITH SMOG FITTINGS...
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THY-367Y2-C
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 2WD
List Price: $972.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-367Y2-DA-C
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 2WD, WITH DUAL AIR FITTINGS
List Price: $988.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-367Y2-S-C
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 2WD, WITH SMOG FITTINGS
List Price: $1018.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-367Y1-DA-C
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400...
List Price: $1044.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, WITH HEAT RISER, 2WD, WITH DUAL AIR FITTINGS...
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THY-304Y-C
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 366-454, 4WD
List Price: $864.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-304Y-S-C
CERAMIC COATING, 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY, 366-454, 4WD, WITH SMOG FITTINGS
List Price: $902.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y3-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITHOUT HEAT RISER...
List Price: $995.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, NO BLAZER, 4WD...
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THY-364Y-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, NO CAT., 4WD
List Price: $839.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y-DA-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, NO CAT., 4WD, WITH DUAL AIR FITTINGS
List Price: $850.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y-S-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, NO CAT., 4WD, WITH SMOG FITTINGS
List Price: $871.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y10-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD
List Price: $1140.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y10-DA-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT...
List Price: $1200.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD, WITH DUAL AIR FITTINGS...
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THY-364Y4-S-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, NO BLAZER...
List Price: $1082.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, NO BLAZER, 4WD, WITH SMOG FITTINGS...
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THY-364Y4-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER...
List Price: $1050.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER, 3" CAT. INLET, NO BLAZER, 4WD...
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THY-364Y4-DA-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER...
List Price: $1061.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, NO BLAZER, 4WD, WITH DUAL AIR FITTINGS...
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THY-364Y3-DA-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITHOUT HEAT RISER...
List Price: $1005.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, NO BLAZER, 4WD, WITH DUAL AIR FITTINGS...
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THY-364Y3-S-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITHOUT HEAT RISER...
List Price: $1027.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, NO BLAZER, 4WD, WITH SMOG FITTINGS...
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THY-364Y10-S-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN,283-400, WITH HEAT RISER, 3 INCH CAT. INLET...
List Price: $1200.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN,283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD, WITH SMOG FITTINGS...
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THY-364Y1-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN/BLAZER/JIMMY, 283-400, WITH HEAT RISER, 4WD
List Price: $1045.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y1-DA-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN/BLAZER/JIMMY, 283-400, WITH HEAT RISER, 4WD, WITH DUAL AIR FITTINGS
List Price: $1056.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y1-S-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN/BLAZER/JIMMY, 283-400, WITH HEAT RISER, 4WD, WITH SMOG FITTINGS
List Price: $1077.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y2-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN/BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 4WD
List Price: $989.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y2-DA-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN/BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 4WD...
List Price: $1000.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN/BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 4WD, WITH DUAL AIR FITTINGS...
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THY-364Y2-S-C
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN/BLAZER/JIMMY, 283-400...
List Price: $1021.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1987 TRUCK; 1973-1991 SUBURBAN/BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 4WD, WITH SMOG FITTINGS...
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THY-364Y8-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET
List Price: $1049.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD...
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THY-364Y6-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4WD
List Price: $1043.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y6-DA-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4WD, WITH DUAL AIR FITTINGS
List Price: $1054.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y6-S-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4WD, WITH SMOG FITTINGS
List Price: $1075.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y8-DA-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET...
List Price: $1060.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD, WITH DUAL AIR FITTINGS...
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THY-364Y8-S-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET...
List Price: $1081.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD, WITH SMOG FITTINGS...
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THY-364Y5-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4WD
List Price: $988.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y5-S-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4WD, WITH SMOG FITTINGS
List Price: $1020.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-364Y5-DA-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET...
List Price: $998.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4WD, WITH DUAL AIR FITTINGS...
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THY-364Y7-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET...
List Price: $993.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD...
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THY-364Y7-DA-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET...
List Price: $1004.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD, WITH DUAL AIR FITTINGS...
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THY-364Y7-S-C
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET...
List Price: $1025.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 BLAZER/JIMMY, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD, WITH SMOG FITTINGS...
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THY-367Y4-C
CERAMIC COATING, 1973-1991 SUBURBAN/BLAZER/JIMMY; 1973-1987 TRUCK, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 2WD
List Price: $1031.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-367Y4-DA-C
CERAMIC COATING, 1973-1991 SUBURBAN/BLAZER/JIMMY; 1973-1987 TRUCK, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET...
List Price: $1047.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 SUBURBAN/BLAZER/JIMMY; 1973-1987 TRUCK, 283-400, WITH HEAT RISER, 3 INCH CAT. INLET, 2WD, WITH DUAL AIR FITTINGS...
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THY-367Y3-C
CERAMIC COATING, 1973-1991 SUBURBAN/BLAZER/JIMMY; 1973-1987 TRUCK, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 2WD
List Price: $975.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-367Y3-DA-C
CERAMIC COATING, 1973-1991 SUBURBAN/BLAZER/JIMMY; 1973-1987 TRUCK, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET..
List Price: $991.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 SUBURBAN/BLAZER/JIMMY; 1973-1987 TRUCK, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 2WD, WITH DUAL AIR FITTINGS...
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THY-367Y3-S-C
CERAMIC COATING, 1973-1991 SUBURBAN/BLAZER/JIMMY; 1973-1987 TRUCK, 283-400, WITHOUT HEAT RISER...
List Price: $1021.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1973-1991 SUBURBAN/BLAZER/JIMMY; 1973-1987 TRUCK, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 2WD, WITH SMOG FITTINGS...
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THY-367Y-DA-C
CERAMIC COATING, 1973-1991 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, 2WD, WITH DUAL AIR FITTINGS
List Price: $887.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-367Y-S-C
CERAMIC COATING, 1973-1991 TRUCK/SUBURBAN/BLAZER/JIMMY, 283-400, 2WD, WITH SMOG FITTINGS
List Price: $827.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-303Y-DA-C
CERAMIC COATING, 1975-2000 CLASS A MOTORHOME P-30 CHASSIS ONLY; 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY...
List Price: $858.00
CERAMIC COATING, 1975-2000 CLASS A MOTORHOME P-30 CHASSIS ONLY; 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY; 366-454, 2WD, WITH DUAL AIR FITTINGS...
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THY-303Y-S-C
CERAMIC COATING, 1975-2000 CLASS A MOTORHOME P-30 CHASSIS ONLY; 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY...
List Price: $882.00
CERAMIC COATING, 1975-2000 CLASS A MOTORHOME P-30 CHASSIS ONLY; 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY; 366-454, 2WD, WITH SMOG FITTINGS
THESE ARE A CERAMIC COATED SET OF HEADERS, WHICH REDUCES UNDER HOOD TEMPERATURES AND IS A RECOMMENDATION FOR ALLMOTORHOME APPLICATIONS...
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THY-303Y-C
CERAMIC COATING, 1975-2000 CLASS A MOTORHOME P-30 CHASSIS ONLY; 1973-1987 TRUCK/SUBURBAN/BLAZER/JIMMY; 366-454, 2WD
List Price: $846.00
CLASS "A" MOTORHOME (P-30 CHASSIS ONLY)
THIS IS A CERAMIC COATED HEADER, WHICH HELPS REDUCE UNDER HOOD TEMPERATURES, ALWAYS A GOOD IDEA IN A MOTORHOME...
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THY-378Y1-C
CERAMIC COATING, 1978-1987, 283-400, Z-28, WITH HEAT RISER, 2-1/4 INCH CAT. INLET
List Price: $1027.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-378Y1-S-C
CERAMIC COATING, 1978-1987, 283-400, Z-28, WITH HEAT RISER, 2-1/4 INCH CAT. INLET, WITH SMOG FITTINGS
List Price: $1065.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-354Y-C
CERAMIC COATING, 1979-1990, 366-454, REVCON FRONT WHEEL DRIVE, 2WD
List Price: $827.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-354Y-S-C
CERAMIC COATING, 1979-1990, 366-454, REVCON FRONT WHEEL DRIVE, 2WD, WITH SMOG FITTINGS
List Price: $887.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y4-S-C
CERAMIC COATING, 1981-1985 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITHOUT HEAT RISER...
List Price: $1055.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1981-1985 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITHOUT HEAT RISER, 3 inch CAT. INLET, WITH SMOG FITTINGS...
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THY-316Y1-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITH HEAT RISER
List Price: $1023.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y3-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITH HEAT RISER, 3 inch CAT. INLET
List Price: $971.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y3-DA-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITH HEAT RISER, 3 inch CAT. INLET, WITH DUAL AIR FITTINGS
List Price: $982.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y3-S-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITH HEAT RISER, 3 inch CAT. INLET, WITH SMOG FITTINGS
List Price: $1003.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y1-DA-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITH HEAT RISER, WITH DUAL AIR FITTINGS
List Price: $1034.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y1-S-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITH HEAT RISER, WITH SMOG FITTINGS
List Price: $1055.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y2-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITHOUT HEAT RISER
List Price: $971.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y4-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITHOUT HEAT RISER, 3 inch CAT. INLET
List Price: $1023.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y2-DA-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITHOUT HEAT RISER, WITH DUAL AIR FITTINGS
List Price: $982.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y2-S-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITHOUT HEAT RISER, WITH SMOG FITTINGS
List Price: $1003.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
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THY-316Y4-DA-C
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L...
List Price: $1034.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1981-1995 G-SERIES VANS/MINI MOTORHOME, 5.0L-5.7L, WITHOUT HEAT RISER, 3 inch CAT. INLET, WITH DUAL AIR FITTINGS...
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THY-377Y1-S-C
CERAMIC COATING, 1986-1972, 283-400, NO COLUMN SHIFT, NO A/C, WITH SMOG FITTINGS
List Price: $870.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-399Y3-C
CERAMIC COATING, 1986-1991 2-DOOR TRUCK, 366-454, 1 TON, STOCK OR LOWERED, 3 INCH CAT. INLET, 2WD ONLY
List Price: $974.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-399Y3-S-C
CERAMIC COATING, 1986-1991 2-DOOR TRUCK, 366-454, 1 TON, STOCK OR LOWERED, 3 INCH CAT. INLET, 2WD ONLY, WITH SMOG FITTINGS
List Price: $1015.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-399Y2-C
CERAMIC COATING, 1986-1991 4-DOOR TRUCK, 366-454, STOCK OR LOWERED, 3 INCH CAT. INLET, 2WD ONLY
List Price: $983.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-399Y2-S-C
CERAMIC COATING, 1986-1991 4-DOOR TRUCK, 366-454, STOCK OR LOWERED, INCH CAT. INLET, 2WD ONLY, WITH SMOG FITTINGS
List Price: $1023.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-399Y1-C
CERAMIC COATING, 1986-1991, 366-454, STOCK OR LOWERED, 3 INCH CAT. INLET, 2WD ONLY
List Price: $977.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-399Y1-S-C
CERAMIC COATING, 1986-1991, 366-454, STOCK OR LOWERED, 3 INCH CAT. INLET, 2WD ONLY, WITH SMOG FITTINGS
List Price: $1010.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!...
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THY-306Y1-S-C
CERAMIC COATING, 1987-1994 CLASS A MOTORHOME, 366-454, TURBO 400 (P-R-N-D-2-1) AUTO TRANS., 3 inch CAT. INLET...
List Price: $1077.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
2WD, WITH SMOG FITTINGS...
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THY-388YL-S-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK ONLY; 1992.5-1995 TRUCK/SUBURBAN, 366-454 (7.4L), 2-DOOR ONLY...
List Price: $1086.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1988-1995 2-DOOR TRUCK ONLY; 1992.5-1995 TRUCK/SUBURBAN, 366-454 (7.4L), 2-DOOR ONLY, STOCK OR LOWERED, 3 INCH CAT. INLET, 2WD, WITH SMOG FITTINGS...
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THY-388YL-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK ONLY; 1992.5-1995 TRUCK/SUBURBAN, 366-454 (7.4L), STOCK OR LOWERED...
List Price: $1001.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1988-1995 2-DOOR TRUCK ONLY; 1992.5-1995 TRUCK/SUBURBAN, 366-454 (7.4L), STOCK OR LOWERED, 3 INCH CAT. INLET, 2WD...
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THY-388Y-S-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK ONLY; 1992.5-1995 TRUCK/SUBURBAN, 366-454, 2-DOOR ONLY, NO LIFT KITS, 3 INCH CAT...
List Price: $1032.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1988-1995 2-DOOR TRUCK ONLY; 1992.5-1995 TRUCK/SUBURBAN, 366-454, 2-DOOR ONLY, NO LIFT KITS, 3 INCH CAT. INLET, 2/4WD, WITH SMOG FITTINGS...
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THY-388Y-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK ONLY; 1992.5-1995 TRUCK/SUBURBAN, 366-454, NO LIFT KITS, 3 INCH CAT. INLET, 2/4WD
List Price: $1000.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers! ...
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THY-385Y1-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER, 283-400, NO ABS
List Price: $1006.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER, 283-400, NO ABS, CLAMPED CAT. UNDER PASSENGER SEAT, 2WD...
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THY-385Y1-DA-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER, 283-400, NO ABS...
List Price: $1021.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER, 283-400, NO ABS, CLAMPED CAT. UNDER PASSENGER SEAT, 2WD, WITH DUAL AIR FITTINGS...
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THY-385Y1-S-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER, 283-400, NO ABS...
List Price: $1044.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER, 283-400, NO ABS, CLAMPED CAT. UNDER PASSENGER SEAT, 2WD, WITH SMOG FITTINGS...
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THY-385Y2-S-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400, NO ABS, WELDED CAT...
List Price: $996.00
It's a proven, indisputable fact: Dollar for dollar, no other investment will increase power and performance like a set of Doug Thorley Headers!
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR | | | |
