Turbosmart Kompact BOV WRX (2002-2007) STI (2004-2018) Hyundai The stiffer springs will increase

The stiffer springs will increase cornering stability

Any combination of venting in between these two extremes is possible to achieve full

air goes through the grill and is pushed across the radiator

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a problem that GrimmSpeed has come to solve

Turbosmart Kompact BOV WRX (2002-2007) STI (2004-2018) Hyundai The stiffer springs will increaseThe Turbosmart Kompact bypass valve for the Subaru WRX STI offers great performance and higher versatility than the OEM valve at a more affordable price. The Turbosmart Kompact valve is designed as a direct replacement for the WRX & STI and offers quicker action, better flow and higher strength under boost. The Kompact series is also substantially smaller than other valves on the market, making installation a breeze in tighter engine bays like the