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STI-Specific Calibration
Designed with a resonated mid pipe
A fundamental rear bushing upgrade for the Golf platform across three generations
Torque Solution Braided Fuel Line Kit for -6 Aeromotive FPR Subaru WRX 02-14 STI 07-18 LGT 07-12 RallySport Direct proudly carries a massive selection of high-performance engine
The Whiteline BSK012 is a matched 22mm front and rear sway bar kit with endlinks for the 2011-2014 Subaru WRX and STI
GrimmSpeed Bypass Valve BLACK - 2004-2021 Subaru STI PDM_auxiliary-lighting STI-Specific CalibrationGrimmSpeed V2 Bypass Valve (Black) , 2004 2021 Subaru STI 2002 2007 WRX The GrimmSpeed V2 Bypass Valve in black for the 2004 2021 Subaru STI 2002 2007 WRX replaces the factory recirculating bypass valve with a performance unit that provides more consistent venting of boost pressure during throttle lift events. The factory bypass valve is adequate at stock boost levels but can become a limitation , or fail , as boost pressure increases with
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