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$39.60
Product Overview
The GFB Atmosphere-Vent Conversion Kit is designed to replace the recirculation venting of a Mach 2 BOV with direct atmospheric venting. This modification improves throttle response and eliminates backfiring by allowing exhaust gases to escape directly into the atmosphere instead of being recirculated.
The kit includes a stiffer spring, a new trumpet, and an adapter fitting. These components work together to maintain valve closure at idle, preventing stalling and backfiring, while enabling full valve operation during acceleration.
Key Features
- Converts BOV venting from recirculation to atmosphere
- Includes a stiffer spring to maintain valve closure at idle
- Designed specifically for T9133 and T9103 BOV systems
- Compatible with Evo and 3000GT/Stealth variants
Specifications
| Part Number | 5933 |
|---|---|
| Fits BOV | GFB Mach 2 (T9133) |
| Fits BOV | GFB Mach 2 (T9103) |
| Vehicle Models | Evo 1/2/3/4/5/6/7/8/9/X |
| Vehicle Models | 3000GT/Stealth |
| Vehicle Models | 2002-2007 WRX |
| Vehicle Models | 2004-2021 STi |
Applications
- Fits GFB Mach 2 (T9133) BOV
- Fits GFB Mach 2 (T9103) BOV
- For 2002-2007 Subaru WRX
- For 2004-2021 Subaru STi
- For Evo 1/2/3/4/5/6/7/8/9/X models
- For 3000GT and Stealth models
What's Included
- 1 Spring
- 1 Trumpet
- 1 Adapter Fitting