GFB Mach 2 Recirculating Plumb Back Blow Off Valve
Not sure which option fits your application? Contact Us — we're happy to help.
GFB Mach 2 Recirculating Plumb Back Blow Off Valve - Nissan 200SX (S14/S15)
GFB built the Mach 2 as a straightforward, bolt-on upgrade for anyone who doesn't need the adjustable venting bias of the Respons or Deceptor Pro. Using GFB's proven TMS technology, it helps your Nissan 200SX return to peak boost up to 30% faster than the factory diverter valve, with dependable boost holding and sharper throttle response.
This listing covers the Nissan 200SX S14 and S15 models, direct replacement for the factory bypass valve. It's configured as a 100% recirculating (plumb back) valve, so you get the performance gains without extra venting noise. No adaptors or vehicle modifications are needed, it simply bolts in place of the OEM valve.
Key Features
- TMS technology for faster boost recovery and improved throttle response
- Effectively holds unlimited boost pressure
- 100% recirculating (plumb back) configuration for a quiet, factory-style operation
- Direct bolt-on fitment, no additional parts required
- Can be converted to atmosphere venting with a separate conversion kit or trumpet outlet
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please ensure your vehicle's year 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 |
|---|---|---|---|
| Nissan | 200SX | S14 | SR20DET |
| Nissan | 200SX | S15 | SR20DET |
Technical Specifications
| Spec | Value |
|---|---|
| Valve Type | 100% Recirculating (Plumb Back / Bypass) |
| Technology | GFB TMS Technology |
| Boost Recovery | Up to 30% faster return to peak boost vs factory diverter valve |
| Boost Holding Capacity | Unlimited (no turbo can produce enough pressure to open the valve) |
| Conversion Option | Can be converted to atmosphere venting via hose plug or optional Atmosphere Conversion Kit |
| Optional Outlet Accessories | Standard trumpet (6110) or whistling trumpet (5702) available separately |
| Vehicle Fitment | 1993-2003 Nissan 200SX (S14/S15) |
No instructions available for this product.

Need Help Finding the Right Part?
We’ll Track It Down for You
We know how frustrating it can be searching for the right part. If it’s not listed on our site, that doesn’t mean we can’t source it.
Fill out the quick form below and our team will track it down for you.


