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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-311Y-C
CERAMIC COATING, 1955-1957, 265-400, STOCK FRONT MOUNTS OR DANCHUCK KIT
List Price: $795.00
Our Price: $600.00
You Save: $195.00
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
Our Price: $660.00
You Save: $176.00
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
Our Price: $660.00
You Save: $208.00
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
Our Price: $675.00
You Save: $174.00
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
Our Price: $675.00
You Save: $158.00
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
Our Price: $600.00
You Save: $183.00
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
Our Price: $650.00
You Save: $167.00
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
Our Price: $647.00
You Save: $179.00
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-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
Our Price: $700.00
You Save: $202.00
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
Our Price: $675.00
You Save: $189.00
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
Our Price: $675.00
You Save: $227.00
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
Our Price: $675.00
You Save: $183.00
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
Our Price: $675.00
You Save: $207.00
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
Our Price: $675.00
You Save: $171.00
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-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
Our Price: $840.00
You Save: $237.00
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-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 TRUCK/SUBURBAN/BLAZER/YUKON, 283-400, NO ABS, WELDED CAT. UNDER PASSENGER FEET, 2WD, WITH SMOG FITTINGS...
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THY-385Y2-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400, NO ABS...
List Price: $958.00
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/YUKON, 283-400, NO ABS, WELDED CAT. UNDER PASSENGER FEET, 2WD...
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THY-385Y2-DA-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400, NO ABS...
List Price: $973.00
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/YUKON, 283-400, NO ABS, WELDED CAT. UNDER PASSENGER FEET, 2WD, WITH DUAL AIR FITTINGS...
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THY-383Y1-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400...
List Price: $1033.00
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/YUKON, 283-400, CLAMPED CAT. UNDER PASSENGER SEAT, ABS-OK, 2WD...
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THY-383Y1-DA-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400...
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!
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400, CLAMPED CAT. UNDER PASSENGER SEAT, ABS-OK, 2WD, WITH DUAL AIR FITTINGS...
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THY-383Y1-S-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400...
List Price: $1070.00
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/YUKON, 283-400, CLAMPED CAT. UNDER PASSENGER SEAT, ABS-OK, 2WD, WITH SMOG FITTINGS...
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THY-383Y2-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400...
List Price: $956.00
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/YUKON, 283-400, WELDED CAT. UNDER PASSENGER FEET, ABS-OK, 2WD...
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THY-383Y2-DA-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400...
List Price: $969.00
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/YUKON, 283-400, WELDED CAT. UNDER PASSENGER FEET, ABS-OK, 2WD, WITH DUAL AIR FITTINGS...
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THY-383Y2-S-C
CERAMIC COATING, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400...
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, 1988-1995 2-DOOR TRUCK; 1992-1995 4-DOOR TRUCK/SUBURBAN/BLAZER/YUKON, 283-400, WELDED CAT. UNDER PASSENGER FEET, ABS-OK, 2WD, WITH SMOG FITTINGS...
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THY-386Y1-DA-C
CERAMIC COATING, 1988-1995 TRUCK; 1992-1995 SUBURBAN/BLAZER/JIMMY/YUKON/TAHOE, 283-400, AUTO TRANS. ONLY
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!
CERAMIC COATING, 1988-1995 TRUCK; 1992-1995 SUBURBAN/BLAZER/JIMMY/YUKON/TAHOE, 283-400, AUTO TRANS. ONLY, NO LIFT KITS, 3 INCH CAT. INLET, 4WD, WITH DUAL AIR FITTINGS...
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THY-386Y1-S-C
CERAMIC COATING, 1988-1995 TRUCK; 1992-1995 SUBURBAN/BLAZER/JIMMY/YUKON/TAHOE, 283-400, AUTO TRANS. ONLY...
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, 1988-1995 TRUCK; 1992-1995 SUBURBAN/BLAZER/JIMMY/YUKON/TAHOE, 283-400, AUTO TRANS. ONLY, NO LIFT KITS, 3 INCH CAT. INLET, 4WD, WITH SMOG FITTINGS...
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THY-306Y2-C
CERAMIC COATING, 1990-2000, 366-454, 4L80E (P-R-N-OD-D-2-1) AUTO TRANS., 3 inch CAT. INLET, 2WD
List Price: $1056.00
Our Price: $800.00
You Save: $256.00
CLASS "A" MOTORHOME w/ 4L80E ("P-R-N-OD-D-2-1") AUTO TRANS, 3" CAT. INLET
THIS IS A CERAMIC COATED SET OF HEADERS WHICH KEEPS UNDER HOOD TEMPERATURES DOWN AND IS ALWAYS A GOOD IDEA WITH MOTORHOMES...
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THY-306Y2-S-C
CERAMIC COATING, 1990-2000, 366-454, 4L80E (P-R-N-OD-D-2-1) AUTO TRANS., 3 inch CAT. INLET, 2WD, WITH SMOG FITTINGS
List Price: $1088.00
Our Price: $840.00
You Save: $248.00
CLASS "A" MOTORHOME w/ 4L80E ("P-R-N-OD-D-2-1") AUTO TRANS, 3" CAT. INLET
THIS INCLUDES AIR INJECTION FITTINGS
THIS IS A CERAMIC COATED SET OF HEADERS WHICH HELPS REDUCE UNDER HOOD TEMPERATURES. CERAMIC COATING IS ALWAYS RECOMMENDED ON RV APPLICATIONS...
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THY-386Y2-C
CERAMIC COATING, 1992-1995, 283-400, AUTO TRANS. ONLY, 4-6 INCH LIFT KIT, 3 INCH CAT. INLET, 4WD
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! ...
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THY-386Y2-DA-C
CERAMIC COATING, 1992-1995, 283-400, AUTO TRANS. ONLY, 4-6 INCH LIFT KIT, 3 INCH CAT. INLET, 4WD, WITH DUAL AIR FITTINGS
List Price: $1013.00
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-386Y2-S-C
CERAMIC COATING, 1992-1995, 283-400, AUTO TRANS. ONLY, 4-6 INCH LIFT KIT, 3 INCH CAT. INLET, 4WD, WITH SMOG FITTINGS
List Price: $1036.00
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-302YFED-C
CERAMIC COATING, 1996-1998 TRUCK/SUBURBAN/TAHOE/YUKON, 350 (5.7L) BELOW 8600 GVW, NO 305 ENG., 2WD
List Price: $1002.00
Our Price: $479.00
You Save: $523.00
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-310Y-DA-C
CERAMIC COATING, 1999-2001, TRUCK/SUBURBAN/TAHOE/YUKON, 4.8L-5.3L, 2/4WD, WITH EGR AND AIR INJECTION
List Price: $841.00
Our Price: $730.00
You Save: $111.00
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-310Y-C
CERAMIC COATING, 1999-2008, TRUCK/SUBURBAN/TAHOE/YUKON, 4.8L-5.3L, 2/4WD, WITH EGR
List Price: $801.00
Our Price: $700.00
You Save: $101.00
PICKUPS: ALL, SUBURBAN, TAHOE/ YUKON, (AVAILABLE w/ AIR INJ.) LONG TUBE, LEGAL FOR 1999-01 ONLY, THESE ARE CERAMIC COATED
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THY-310Y-49-C
CERAMIC COATING, 1999-2008, TRUCK/SUBURBAN/TAHOE/YUKON, 4.8L-6.0L, 2/4WD, NO SMOG FITTINGS
List Price: $789.00
Our Price: $650.00
You Save: $139.00
PICKUPS: ALL, SUBURBAN, TAHOE/ YUKON, NO SMOG FITTINGS LONG TUBE, LEGAL FOR 1999-01 ONLY, THESE ARE CERAMIC COATED
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THY-309-C
CERAMIC COATING, 1999-2012 TRUCK SUBURBAN TAHOE YUKON AVALANCHE HUMMER H2 DENALI ESCALADE 4.8L-6.2L, 2/4WD
List Price: $684.00
Our Price: $540.00
You Save: $144.00
DIRECT BOLT ON REPLACEMENT FOR THE FACTORY MANIFOLD WITH INCREASES IN HORSEPOWER, TORQUE, AND GAS MILEAGE. CERAMIC COATED FOR REDUCED UNDER HOOD TEMPERATURES AND INCREASED PERFORMANCE THESE WILL LOOK AWESOME UNDER THE HOOD.
NO SMOG FITTINGS....
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THY-309-S-C
CERAMIC COATING, 2002 TRUCK/SUBURBAN/TAHOE/YUKON/AVALANCE/HUMMER H2, 6.0L, 2/4WD, WITH EGR FITTING
List Price: $702.00
Our Price: $560.00
You Save: $142.00
PICKUPS: ALL, SUBURBAN, TAHOE/ YUKON, AVALANCHE, HUMMER H2 w/EGR - SHORTIE, THESE ARE CERAMIC COATED AND ARE THE ULTIMATE ACCESSORY FOR YOUR RIDE
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THY-364Y9-C
CERAMIC COATING, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD
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! ...
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THY-364Y9-DA-C
CERAMIC COATING, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD, WITH DUAL AIR FITTINGS
List Price: $1007.00
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-364Y9-S-C
CERAMIC COATING, 283-400, WITHOUT HEAT RISER, 3 INCH CAT. INLET, 4-6 INCH LIFT KIT, 4WD, WITH SMOG FITTINGS
List Price: $1028.00
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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