The remaining waves produce the deepened and enriched exhaust acoustics you love. Stillen offers a variety of exhaust systems for many vehicles, both foreign and domestic. The muffler is a glass filled, large chamber design that provides the optimal amount of ls2 exhaust manifold velocity for the engine while producing a great low rumble sound - without any annoying buzzing, "racer" sound. The high clearance fitment dramatically reduces the risk of getting hung-up on obstacles when off-roading. We’ve been helping customers with performance upgrades since 2006, and have a staff full of people who can help answer your questions. Our customer service — from our low prices to our fast shipping — has earned us a reputation with a legion of fans.
Brands like Invidia, Borla, and Agency Power offer a wide range of options, allowing you to customize the sound and performance to suit your preferences. Upgrade your Subaru WRX, STI, Forester, and Crosstrek with these cat back exhausts to unlock additional horsepower, torque, and an exhilarating driving experience. Catback exhaust systems are typically made up of a rear pipe, a resonator and a muffler, though they can also include a mid-pipe, x-pipe, h-pipe or y-pipe, depending on the make and model. Upgrade the sound and performance of your Toyota Supra, GR86, or Subaru BRZ with a high-quality cat back exhaust system from FTSpeed. Our cat back exhausts are engineered to enhance exhaust flow, resulting in improved horsepower, torque, and throttle response. With a deep and aggressive tone, these exhaust systems not only amplify the sporty character of your vehicle but also provide a captivating driving experience.
The time and money you spend are a big investment, and we want to help you make the best decision for your driving dreams. Typically, a cat-back exhaust system will increase your car’s horsepower by somewhere between 5 and 50 brake horsepower. This will vary greatly depending on the condition of your exhaust and engine, so you should ask your mechanic if getting a cat-back exhaust is the best way to improve the performance of your car.
Cat-back exhaust system kits come standard with tailpipes, a performance muffler and exhaust tips. The inclusion of our wider, mandrel-bent tailpipes means cat-back exhausts are your go-to for increasing your performance gains along with boosting your sound. While horsepower and torque gains vary from vehicle to vehicle, you can expect anywhere from a percent gain in horsepower and torque after installing a cat-back exhaust system.
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