The installation of a cat-back exhaust system is fairly easy, but this too depends on your vehicle’s make and model. But, compared to the alternative, they are the easiest way of improving your vehicle’s performance without breaking the bank. As a result, the engine gets to breathe better and so release more torque and horsepower.
Shelby also gives the truck some off-road chops by installing a BDS 3.0-inch lift kit, Fox 2.5-inch internal bypass dampers, and performance rear traction bars. The truck also sits on a set of 22-inch Shelby wheels wrapped in 35-inch all-terrain tires. The new 2024 Ford Shelby F-150 packs up to 785 hp, or more power than many supercars. That's with an available supercharger for the truck's 5.0-liter V-8. Buyers can also opt for a naturally aspirated version where the V-8 keeps its stock 400-hp rating.
Less restrictive catalytic converters paired with a cat-back exhaust system will offer high performance and power. Though, the level of horsepower gained is not constant across all cat-back systems. It depends on the quality and performance of the catalytic converters. Because of the better flow of exhausts resulting from the mandrel-bent tubing and the larger diameter piping, cat-back exhaust systems manage to offer better performance. IE offers catback, downpipe, and midpipes upgrades to replace individual sections of your exhaust. Installing variations of these parts allows you to dial in your exhaust volume to your preference, from sporty to aggressive.
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