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.
This modification includes the pipes, muffler, and sometimes the resonator. The term "cat-back" itself signifies that everything behind the vehicle’s catalytic converter is being upgraded or replaced. Milltek's Sport Catback Exhaust Systems are designed to compensate for the sound reducing qualities from the particulate filter and significantly improve the sound aesthetic of the exhaust system.
To maintain catalyst efficiency, the air–fuel ratio must stay close to stoichiometric and not remain rich or lean for too long. All of Milltek's performance exhaust systems are manufactured from T304L stainless-steel