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For performance applications
Construction: Precision CNC Machined for Perfect Fit
perfect for wheels with small lug holes
Fitment: Subaru Crosstrek XV (2013-2017)
Grimmspeed V2 Bypass Valve Red 2015-2021 WRX / 2014-2018 Forester XT YMM_2019_BRZ Shop now to fuel yourGrimmSpeed has taken our bypass valve to the next level with a complete redesign of the internal piston, spring, and body for unmatched durability, performance, and style. After extensive testing, we addressed the weaknesses seen in the V1 design and created a valve that holds double the boost pressure of stock units while maintaining a sleek appearance under your hood. In stock FA20 engines, OEM bypass valves have shown internal leakage at as low as
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