Dress up your engine bay with this all new silicone blow off valve return hose from Agency Power.

GFB Stealth FX Dual Port vents to the intake & vents to the atmosphere with its dual port action. This blow off valve is ideal if you want the loud swoosh without your car stalling out.
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This kit will allow you to recirculate the HKS SSQ BOV on your EVO X.

Only works with HKS Part # 71004-AM015

Super SQV 3 features include a nickel-plated, die-cast metal secondary valve, which is swaged to the primary valve, a stainless steel C-clip and spring to increase sealing and durability. To assure buyers that they are purchasing an authentic HKS product, the new design incorporates a holographic...

Inefficient factory blow off valves (BOV) can hinder boost response during shifts and can limit the amount of boost pressure that can be built by your turbocharger.

TurboSmart Dual Port vents to the intake & vents to the atmosphere with its dual port action.