GFB Respons Dual Port Variable Blow Off Valve
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GFB Respons Dual Port Variable Blow Off Valve - Nissan Skyline (R32/R33/R34) / Stagea (WC34) / Mazda 3 MPS (BK/BL) / 6 MPS (GG) / CX-7
GFB pioneered the dual port blow off valve back in 1999 and followed it up with a patented venting bias system in 2001, and the Respons is the result of two decades of refinement. It's built for the Nissan Skyline and Stagea, plus the Mazda 3 MPS, 6 MPS and CX-7, giving you a genuine blow off sound without the stalling or fuelling dramas that plague cheaper valves on MAF equipped cars.
This listing covers the Nissan Skyline R32, R33 and R34, the Stagea WC34, Mazda 3 MPS BK and BL, Mazda 6 MPS GG, and Mazda CX-7. SKU T9002 is a direct bolt on kit for these applications, fitting straight into the factory location with no adaptors or modifications required.
Key Features
- Patented venting bias adjustment, fully tunable from 100% recirculating to 100% atmosphere
- Balanced piston design prevents the valve being forced open under high boost
- Stays shut until needed, only venting enough air to prevent compressor surge
- Faster boost recovery on gearshift, up to 30% quicker than a factory diverter valve
- Direct bolt on kit, no cutting or adaptors needed
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year, trim level, and 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 |
|---|---|---|---|
| Mazda | 3 MPS | BK | L3-VDT |
| Mazda | 3 MPS | BL | L3-VDT |
| Mazda | 6 MPS | GG | L3-VDT |
| Mazda | CX-7 | ER | L3-VDT |
| Nissan | Skyline GTS-T/GTS-4 | R32 | RB20DET |
| Nissan | Skyline GTS-T | R33 | RB25DET |
| Nissan | Skyline GT-T | R34 | RB25DET |
| Nissan | Stagea RS/RS-Four | WC34 | RB25DET |
Technical Specifications
| Spec | Value |
|---|---|
| Valve Type | Dual port variable blow off valve (recirculating/atmospheric adjustable) |
| Venting Bias Adjustment | Adjustable from 100% recirculating to 100% atmospheric venting, and anywhere in between |
| Piston Design | Balanced piston design using boost pressure on both sides to prevent forced opening under high boost |
| Kit Type | Direct bolt-on, fits factory location, no modifications required |
No instructions available for this product.

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