Turbo XS Downpipe Catless Bellmouth WRX (2008-2014) STI (2008-2018) Nissan especially when upgrading a turbocharger

especially when upgrading a turbocharger or to a high flow intake system

Materials:

2mm thin wall piping as well as hollow exhaust hangers for weight reduction

ACT engineers XACT flywheels using the latest CAD and FEA (finite element analysis) software to evaluate all design alternatives to get the best results possible

allowing you to dial in your desired front or rear stiffness and tune in understeer or oversteer as you please

Turbo XS Downpipe Catless Bellmouth WRX (2008-2014) STI (2008-2018) Nissan especially when upgrading a turbochargerTurboXS catless downpipe for the Subaru WRX and STI uses a massive cast 304 Stainless Steel Bellmouth that tapers to 3. 0" piping where it connects to the mid pipe. Features: Two piece design Easier installation Cast 304 Stainless Steel Bellmouth upper section for maximum exhaust gas flow 3. 5 inch diameter 304 Stainless Steel pipe tapering smoothly to 3. 0 inch Spare wideband oxygen sensor bung included Modified pipe path to provide more ground