COBB Transmission Cross Member Isolator Kit - Subaru Models (inc. 2008-2021 WRX / STI / 2005-2009 Outback XT) PDM_blow-off-valve-components The slotted design improves the

The slotted design improves the braking performance

50" piping diameter

No exceptions

Complete with official

The two main high-pressure ports are threaded for 6AN ORB fitting provisions

COBB Transmission Cross Member Isolator Kit - Subaru Models (inc. 2008-2021 WRX / STI / 2005-2009 Outback XT) PDM_blow-off-valve-components The slotted design improves theCobb Engineering for the GR VA STI The Cobb Transmission Cross Member Isolator Kit Subaru Models (inc. 2008 2021 WRX STI 2005 2009 Outback XT) for the 2008 2021 Subaru WRX STI is a direct fit upgrade developed by Cobb Tuning as part of their comprehensive platform specific lineup for the GR VA STI. Every Cobb product for this platform is engineered around the factory fitment points and validated on Cobb's own development vehicles the result is