A cat-back exhaust system is one of the best ways to improve your car's performance. It replaces the stock cat-back exhaust system and gives your car a more aggressive sound. Perhaps the most significant benefit is the increased power that it can provide.
In layman’s terms, a catback exhaust system provides a smoother, more streamlined path for exhaust gases to exit your car, allowing your engine to work more efficiently. When catalytic converters were first introduced, most vehicles used carburetors that provided a relatively rich air-fuel ratio. Oxygen (O2) levels in the exhaust stream were therefore generally insufficient for the catalytic reaction to occur efficiently.
Video Features Options Short video of our 3" Catback Exhaust for the 07+ Honda Civic Si Sedan. Note that this was installed on a naturally aspirated setup (stock header and... Already own an