Eliminating restriction in the exhaust system to allow your engine to breathe freely is often the first step on the way to producing more power, and Doug Thorley Headers has over half a century of experience in doing just that. Our cat-back and turbo-back exhaust systems draw on that experience to deliver more horsepower and torque than restrictive OEM systems, and a satisfying rumble that lets others know you mean business.
We build our cat-back and turbo-back systems using tough 16-gauge tubing for extra durability, with smooth mandrel bends for maximum flow and maximum efficiency! Each of our systems utilizes our exclusive Aero-Flow mufflers that feature straight-thru perforated cores, with no power robbing baffles or chambers, to produce maximum power and that signature Doug Thorley sound.
Installation is as simple as bolting the new system up to the factory mounting locations, and each kit includes easy to use clamps to ensure a fast and clean fit without any welding required. As a finishing touch, most systems come standard with a decorative exhaust tip featuring a laser etched Doug Thorley Headers logo. Additional show-quality tip styles are available in a number of finishes, including super durable polished T304 stainless steel.
Just like our headers, every Doug Thorley Headers exhaust system is made in the USA, and backed by our limited lifetime warranty to give you peace of mind. Pair one of our cat-back systems with one of our header systems for the ultimate in American made performance!