GFB Mach 2 T9103 is a recirculating turbocharger diverter valve designed for direct fitment to selected Subaru models.
The valve redirects air from the boost system back into the turbocharger intake system when the throttle closes and is suitable for Subaru WRX, STI and Forester XT vehicles.
- Model: Mach 2 T9103
- Recirculating design
- Direct fitment
- Weight: 0.60 kg
Suitable for: Subaru Forester II (SG), Subaru Impreza II (GD/GG) / II (STI/GDE/GDF) / III (STI/GRB), Subaru Wrx I (STI/VAB/VAF/VAG).
Compatible vehicles (manufacturer data)
| Vehicle | Chassis | Years | Engine |
|---|---|---|---|
| Subaru STi | — | 2002–2026 | — |
| Subaru WRX | — | 2001–2007 | — |
| Subaru XT Forester | — | 2005–2008 | — |
Before ordering, check that the product matches your vehicle (model, year and engine). If in doubt, write to us — we will check for you.

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