Blow Off Valves Parts

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Subaru STI - Blow Off Valves

Fitment Includes: 2004, 2005, 2006, 2007 Subaru STI


When you start adding more power and performance to your Subaru STI, you risk surpassing the limits and capacity of the factory blow-off valve. If this happens you will be leaking boost which means you will not be hitting your power targets. We carry a great selection of blow-off valves that have been designed to hold boost, while quickly purging the boost between shifts or deceleration. You will find the most established brands in the Subaru performance industry that include but are not limited to HKS, Tial, Turbosmart, GrimmSpeed, and COBB Tuning among other brands that you cannot go wrong with. If you start performing upgrades that put you both of 300 WHP, consider a quality blow-off valve option that will maximize the performance out of your EJ while maximizing the life out of your turbocharger system.

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Blow Off Valves
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