Doug Thorley Headers

Doug Thorley Headers understands your need for extra power and torque. That's why their Thorley Diesel Exhaust System uses massive 4" mandrel-bent tubing from the turbo back to the 5" chrome tip for free-breathing flow. Lifetime Warranty. Read More

Priced from $315.95 each

Adding some extra horsepower has never been easier, thanks to Doug Thorley Headers' all-new Cat-Back Exhaust Systems. You get custom pipes, an Aeroflow muffler, 50-state smog legality and a chrome tip in one specialized package. Lifetime Warranty. Read More

Priced from $290.95 each

The legend of Doug Thorley Headers' exhaust performance enjoys new life as a dual exit set in this Doug Thorley Cat Back Exhaust. Mandrel-bent pipes, an Aeroflow muffler, smog legality, a chrome tip and a Lifetime Warranty-what else could you want? Read More

Priced from $427.95 each

Dollar for dollar, no performance upgrade in the world can match a set of Doug Thorley Headers. They're fine-tuned for power and smog legality in a Tri-Y, shorty or long pipe design. Mild steel with a ceramic or nickel coating. Lifetime Warranty. Read More

Priced from $212.95