GrimmSpeed 08-14 Subaru WRX V2 Bypass Valve - Black

The GrimmSpeed Version 2 Bypass Valve is a redesigned unit featuring a new internal piston, optimized spring tension, and an updated main body for improved manufacturability, performance, and reliability. It's CNC-machined from billet 6061 aluminum alloy and anodized in black for corrosion resistance. The oversized 38mm anodized aluminum piston provides superior flow, and the valve uses Buna-N O-rings with a dovetail design for superior retention and resistance to fuel and oil degradation. It also features a swivel air fitting for easier installation and custom setups. No tuning or adjustment is required. The valve is designed to hold double the pressure of stock units and eliminate boost leaks common in OEM and cheap aftermarket BPVs.