Shelby American is celebrating the 100th anniversary of Carroll Shelby’s birth with a truck built to perform both on and off the road. The 2024 Roush Super Duty stands as a testament to Roush Performance’s dedication to engineering excellence, blending raw power with… From their humble beginnings to becoming one of the most well-known companies in Brisbane and Australia we are experts in the fast developing future of new age vehicles and accessories.

By running pipes from the catalytic converter to the muffler and from the muffler to the exhaust tip, cat back exhaust systems improve exhaust gas flow, providing small performance boosts. However, your performance gains may be limited if your catalytic converter restricts gas flow, as a catback exhaust system is installed ‘downstream’ of the converter. Header-back systems are increasingly rare, namely because of modern emissions systems. Since removing your vehicle’s factory emissions components is highly illegal, the previous two options are more common. However, header-back systems are still available for some older, pre-emissions applications. In these cases, header-back systems offer more performance and volume than cat-back or axle-back systems