Doug Thorley Headers Diesel Exhaust Systems

When is a diesel rig a hot rod? When Doug Thorley Diesel Exhaust Systems are at work, of course. Get the classic Thorley name with the latest diesel performance when you check out Doug Thorley Diesel Exhaust Systems here at AutoAnything.

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Doug Thorley Diesel Cat Back Exhaust System

Doug Thorley Diesel Cat Back Exhaust System
Doug Thorley Diesel Cat Back Exhaust System

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 Free Shipping