GrimmSpeed Version 2 Bypass Valve
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GrimmSpeed Version 2 Bypass Valve - Subaru WRX (GE8/GH8) / Liberty GT (BL5/BP5)
GrimmSpeed built its reputation on engineering parts that look as good as they perform, and the Version 2 Bypass Valve carries that philosophy forward. Designed to eliminate the boost leaks common in factory units, it's a direct upgrade for your Subaru WRX or Liberty GT.
This listing covers the Subaru WRX (GE8/GH8) and Subaru Liberty GT (BL5/BP5). The valve is available in black or red anodised finish, selectable via the variant options on this listing (SKU GRM126034BLK for black).
Note: This valve is not compatible with vehicles running the OEM top mount intercooler.
Key Features
- CNC machined from billet 6061 aluminium
- Corrosion resistant anodised finish, black or red
- Oversized 38mm piston for faster, more reliable pressure release
- Machined brass piston seated on a Buna-N O-ring for a leak free seal
- Swivel air fitting for easier installation and custom routing
- No engine tuning or adjustment required
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, trim level, and intercooler configuration are confirmed before ordering.
Not sure if this valve suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Subaru | Forester XT | - | |
| Subaru | Liberty GT | BL5 | - |
| Subaru | Liberty GT | BP5 | - |
| Subaru | Outback XT | - | |
| Subaru | WRX | GE8 | - |
| Subaru | WRX | GH8 | - |
Technical Specifications
| Spec | Value |
|---|---|
| Body & Base Material | CNC-machined billet 6061 aluminium alloy |
| Finish | Anodised finish, corrosion resistant (available in black or red) |
| Piston Diameter | 38mm oversized anodised aluminium piston/sealing ring |
| Spring | Precision-tuned steel spring |
| O-Rings | Buna-N, single dovetail groove retention design |
| Fitting | Swivel air fitting |
| Tuning Required | No engine tuning or adjustment required |
No instructions available for this product.

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