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Increased Performance and Sound
improving break-in conditions
more compact than any other external wastegate on the market today
GET FAST AFR READINGS TO MAKE SURE YOUR TUNE IS IN THE STRIKE ZONE
50% greater capacity than stock plastic expansion tank
Cobb 2in. Stainless Steep Up-Pipe - 2004-2021 Subaru STI (Incl. Type RA/S209) / 2006-2014 WRX / 2006-2013 Forester XT pdm_supercharger-pulleys Increased Performance and SoundCobb Engineering for the GD GR VA STI The Cobb 2in. Stainless Steep Up Pipe 2004 2021 Subaru STI (Incl. Type RA S209) 2006 2014 WRX 2006 2013 Forester XT for the 2004 2021 Subaru STI is a direct fit upgrade developed by Cobb Tuning as part of their comprehensive platform specific lineup for the GD 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