This is a great up pipe at a great price. The 45mm diameter of the TurboXS up pipe is exactly the same as the turbine inlet on the turbocharger, so exhaust gas velocity is maximized and turbulence is minimized. The high-strength flex section promotes even sealing at both ends of the up pipe, reducing the possiblity of exhaust leaks. Thick flanges ward off warping issues, and the stainless steel construction makes corrosion almost impossible. Like all TurboXS exhaust pieces, it's covered by a five-year warranty against manufacturing defects. Comes with studs. Gaskets are available separately, below.
Fits all Subaru 2006-2014 Subaru WRX, and 2004-2021 WRX STI.