GFB Atmosphere-Vent Conversion Kit for Mach 2 BOV (5933)

GFB Atmosphere-Vent Conversion Kit for Mach 2 BOV (5933)

$39.60
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GFB Atmosphere-Vent Conversion Kit for Mach 2 BOV (5933)
$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

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