The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
89215 CAT-BACK EXHAUST, 1996-1999 TOYOTA 4-RUNNER 3.4L Our Price:$387.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!
...
89225 CAT-BACK EXHAUST, 2007 TOYOTA FJ CRUISER 4.0L
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!
The proof is in the dyno! Our FJ Cruiser gained 13hp and 15ft lbs of torque! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
89205 CAT-BACK EXHAUST, TOYOTA 4-RUNNER 3.0L 2/4WD 1990-1993 Our Price:$387.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!
...
89204 CAT-BACK EXHAUST, TOYOTA 4-RUNNER 3.0L 2/4WD 1994-1995 Our Price:$387.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
89218 CAT-BACK EXHAUST, TOYOTA 4-RUNNER 3.4L 2/4WD 1999-2002 Our Price:$387.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!...
89219 CAT-BACK EXHAUST, TOYOTA 4-RUNNER 4.0L 2/4WD 2003 Our Price:$387.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!
...
89401 CAT-BACK EXHAUST, TOYOTA CELICA 1.8L 2000-2001 Our Price:$409.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
89402 CAT-BACK EXHAUST, TOYOTA MATRIX (NON-XRS) 1.8L 2002-2004 Our Price:$409.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
89403 CAT-BACK EXHAUST, TOYOTA MATRIX XRS 1.8L 2002-2004 Our Price:$409.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
89220 CAT-BACK EXHAUST, TOYOTA TACOMA 2.7L 2WD 2005-2006 Our Price:$368.00
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Special Thanks to: Justin Park and his 2008 Tacoma X-Runner! Check out the video of Justin's truck on our dyno after it was test fitted with the THY-515L long tube headers and the 89221 cat-back. Justin's truck gained 17ft pounds of torque and 11hp.
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!
Thanks to Chris D. at Custom Tacos for the sweet video and pictures!
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too! ...
89223 CAT-BACK EXHAUST, TOYOTA TUNDRA CC/SB 5.7L 2007
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!
The proof is in the dyno! Our Tundra gained a respectable 18hp and 30ft lbs!...
The absolute simplest way to make power is to bolt on a Doug Thorley Headers 50-state legal exhaust system.
Precise CNC mandrel bends, heavy duty 16-gauge aluminized tubing, and factory style hangers spell "quality". Capped with highly polished chrome tips, your vehicle won't just perform and sound great, it will turn heads, too!
The proof is in the dyno! By just adding the cat-back we gained 18 hp and 25 ft-lb of torque on an otherwise stock truck.
Jamie, our head of...
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March 8, 2008
TOYOTA ONLY Dyno Day!
Doug Thorley will be doing a TOYOTA ONLY dyno day! Come join us at our R&D Department on March 8th...