Tomioka Racing Twin Scroll High Flow Catless Downpipe *FOR TWIN SCROLL TURBO USE ONLY* - 2002-2014 Subaru WRX / 2004-2021 STI PDM_rotor-singles The larger piping diameter allows

The larger piping diameter allows for an unobstructed exit path for the exhaust gases during acceleration

3 1/8" / 80mm overall length

Improved oil ingress

not the 2022+ FA24 platform

Tomioka Racing Twin Scroll High Flow Catless Downpipe *FOR TWIN SCROLL TURBO USE ONLY* - 2002-2014 Subaru WRX / 2004-2021 STI PDM_rotor-singles The larger piping diameter allowsTomioka Racing Twin Scroll High Flow Catless Downpipe 2002 2007 Subaru WRX 2004 2007 STI The Tomioka Racing Twin Scroll High Flow Catless Downpipe for the 2002 2007 Subaru WRX and 2004 2007 STI is a SUS304 stainless steel high flow downpipe for existing twin scroll turbo and manifold setups. Larger diameter piping with ported flanges for improved exhaust flow versus OEM. 0. 25 inch pipe wall, 0. 5 inch flange thickness. NOTE: Lead time approximately 4