GFB Respons Dual Port Variable BOV - Subaru WRX/STI (GC8) MY94-96 / Toyota Supra (JZA80) - 20mm
Regular price
$354.99
The GFB Respons dual port variable blow off valve in the 20mm size suits the MY94-96 Subaru WRX and STI (GC8) and the 1993-2002 Toyota Supra (JZA80). GFB's patented venting bias adjustment replaces a fixed split with one you set yourself, giving these MAF-equipped engines a blow off sound while avoiding stalling and over-fuelling. Mounting the valve in a different spot in the GC8 engine bay may mean modifying the factory hoses. The Supra needs its hoses modified to fit the valve, as it isn't a direct bolt-on.
Features
- Patented venting bias adjustable between full recirculation and full atmosphere
- Balanced piston holds boost and won't blow open at high pressure
- TMS operation for quicker boost recovery after a gearshift
- 20mm valve port
- Blow off sound set to your own preference
Specifications
- Brand: GFB
- Product Type: Dual Port Variable Blow Off Valve
- Series: Respons TMS
- Valve Port Size: 20mm
- Venting Adjustment: Full recirculation to full atmosphere
- Installation: Hose modification required on the Supra; may be needed on the GC8 if relocated
- Part Number: T9020
Vehicle Compatibility: 3 applications across 2 makes. Select a make to view.
Subaru (2)
| Model | Variant | Engine | Years | Notes |
|---|---|---|---|---|
| WRX | GC8 | 1994-1996 | Factory hoses may need modifying if the valve is mounted elsewhere | |
| WRX STI | GC8 | 1994-1996 | Factory hoses may need modifying if the valve is mounted elsewhere |
Toyota (1)
| Model | Variant | Engine | Years | Notes |
|---|---|---|---|---|
| Supra | JZA80 | 1993-2002 | Not a direct bolt-on; hose modification required |
Please confirm fitment against your vehicle before ordering. Contact us if you need help selecting the right part.