Doug Thorley Headers Doug Thorley Diesel Cat Back Exhaust System, Doug Thorley Headers - Exhaust, Mufflers & Tips - Diesel Exhaust Systems

Doug Thorley Diesel Cat Back Exhaust System. Your diesel rig came with more than enough horsepower and torque for the average driver. Doug Thorley Exhausts have never been much for average, though. Their decades-long mission has been to make stock exhausts look inferior. This is where Doug Thorley Headers' Diesel Exhaust comes in for your truck. Using 16-gauge aluminized steel tubing in a girthy 4" diameter, custom CNC mandrel bending and a free-flowing muffler, a Thorley Diesel Exhaust adds instant punch at the pedal. It provides loads of low-end pulling torque, too. Doug Thorley Diesel Exhausts keep installation simple. All diesel exhausts mount to the original positions, and include factory-style hangers for straightforward mounting. Plus, each Doug Thorley Diesel Exhaust stays 50-state smog legal. To top it all off, your Doug Thorley Diesel Exhaust is capped by a burly 5" diameter chrome exhaust tip and carries a Lifetime Warranty for the original owner"”hardly an average deal on diesel exhaust. Doug Thorley Diesel Cat Back Exhaust System. Exhaust, Mufflers & Tips, Diesel Exhaust Systems .