TurboXS [15-21 WRX] Front Pipe with Catalytic Converter MT/CVT | W15-FPC

Front Pipe (J pipe) with High Flow Catalytic Converter for your Subaru WRX. So you want to get more power from your WRX but you still want to keep a Catalytic Converter on your car Look no further than the TurboXS Front Pipe with High Flow Cat. The TurboXS Catted Front Pipe for your WRX is one of single best power adding modifications you can do and still keep the planet happy. Turbochargers work best when there is large pressure and temperature differential across the turbine wheel. Having a large, free flowing downpipe is what give you that large pressure and temperature differential. The downpipe tapers to 3" towards the tail and even includes a pre-welded 02 sensor bung for installing an aftermarket wideband O2 sensors. OEM style doughnut gasket enhances flexibility, durability and sealing as opposed to lower quality flex joints. Features include: All 304 Stainless Steel Construction  3.5" at the turbocharger tapering to 3.0" at the exit to the catback exhaust 12mm thick flanges H