Doug Thorley Headers Exhaust, Mufflers & Tips

Doug Thorley Headers is an industry icon synonymous with power, performance, speed and sound. It's a demanding position to maintain but Thorley Headers is committed to their mission of upholding that standard of excellence.

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Doug Thorley Headers
Doug Thorley Headers
$241.95
(47)

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.

Doug Thorley Diesel Cat-Back Exhaust System
Doug Thorley Diesel Cat-Back Exhaust System
$315.95
(16)

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

Doug Thorley Dual Exit Exhaust System
Doug Thorley Dual Exit Exhaust System
$427.95
(5)

The legend of Doug Thorley Headers' exhaust performance enjoys new life as this Doug Thorley Dual Exit Exhaust System. Mandrel-bent pipes, an Aeroflow muffler, smog legality and a chrome tip. Backed by a Lifetime Warranty.

Doug Thorley Single Exit Exhaust System
Doug Thorley Single Exit Exhaust System
$290.95
(43)

Adding some extra horsepower has never been easier, thanks to Doug Thorley Headers' Single Exit Exhaust System. You get custom pipes, an Aeroflow muffler, 50-state smog legality and a chrome tip in one specialized package. Lifetime Warranty.