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Product Info
Features
- The Doug Thorley Diesel Exhaust System juices-up Powerstroke, Duramax and Cummins diesel trucks with free-flowing power
- Utilizes custom CNC mandrel-bent 16-gauge aluminized steel tubing to eliminate restrictions and backpressure
- Doug Thorley Diesel Exhausts boast a massive 4″ pipe diameter to accommodate high-displacement diesel engines
- Bolts directly to stock mounting positions at the turbo or catalytic converter without any modifications required
- Doug Thorley Headers’ Diesel Exhaust Systems employ factory-style hangers for straightforward mounting
- Exit pipes are capped-off by a whopping 5″ chrome exhaust tip
- Includes a high-performance Thorley muffler
- Your Doug Thorley Diesel Exhaust carries a Lifetime Warranty for the original owner
Description
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.
Manufacturer Info![]()
Doug Thorley Headers is an industry icon synonymous with power, performance, speed and sound. It is a demanding position to maintain but we are committed to our mission of upholding a standard of excellence that places us second to none in the automotive exhaust market.
Based in the heyday of muscle cars and drag racing, a solid foundation began for the development of products used in everyday street driven vehicles. Over time, that massive amount of research, expertise and proven results brought some of the biggest names in the industry to our door. Companies such as Honda, Roush, TRD, Kawasaki, Suzuki and a host of other well-known trade names rely on us to provide the “Show & Go” our name has come to imply It is a fact we’re very proud of.
In the coming years, Doug Thorley Headers and Exhaust Shows no signs of slowing down. Our application list continues to rapidly expand thanks to our talented team of engineers, expert developers and skilled machinists. Having added a state-of-the-art facility in 2002, our combined space now totals over 143,000 square feet. This has allowed for implementation of the latest methods in modernized manufacturing techniques. With production streamlined, we are able to focus on what matters most: providing quality products, expeditious delivery and attentive service to you.
The above information has been provided by the Manufacturer and AutoAnything cannot guarantee the accuracy thereof or endorse the opinions expressed.
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