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Celebrating 250 Years of American Freedom, All Year Long! More Horsepower. More Burnouts.
Celebrating 250 Years of American Freedom. More Horsepower. More Burnouts.

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GFB HYBRID TMS Dual Port 15+ Subaru WRX / Forester

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Original price $260.90
Original price $260.90 - Original price $260.90
Original price $260.90
Current price $234.81
$234.81 - $234.81
Current price $234.81

All The Performance With The Noise! The Hybrid valve is back! In 1999, GFB's first Hybrid valve pioneered the dual port design, which was so successful the technology has since been adopted by most other brands. By "staging" the two venting outlets, at low valve lifts most of the air is recirculated. As the car is driven harder, the valve opens further and more of the atmosphere venting port is exposed for a louder sound

Installation Instructions
  • DUAL STAGED VENTING OUTLETS, CAN BE CONFIGURED FOR FULL RECIRC, 50/50, OR FULL ATMOSPHERE OPERATION USING PLUGS PROVIDED

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