Invidia HS15STIGM4SS Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Stainless Steel Tip Cat)

For a strong boost in power, the Invidia pipe offers an alternative to other power-boosting enhancements. To see just how much power the Invidia pipe can produce, a quick look at its dyno chart shows it easily added several horse-power units to the stock exhaust system. Each Invidia pipe features a large 4-in stainless-steel Bell mount to enhance power by fe excess gas. It sports a one -piece design, eliminating the need for the stock catalytic converter. In addition, each Invidia pipe can be bolted up to any Invidia exhaust or a stock exhaust for an easy installation.