Blow Off Valves

A full atmospheric BOV for racers and serious enthusiasts who want to be noticed. Supersonic provides a superior flow performance with the famous Supersonic sound. Featuring a tool-free adjustment via a rotating cap and a positive-seal piston, this is...

If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with...

Big Bubba From Turbosmart exists because sometimes Bigger is Better! Big Bubba is a piston style valve for large capacity supercharged and turbocharged engines including diesels! If you're looking for an inconspicuous valve for a small capacity, low...

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...

Furthermore, these benefits won't cost you the Earth! Rather than throwing the entire factory diverter valve system in the trash (like other manufacturer's "solutions"), the DV+ keeps what works, and replaces what doesn't. It retains the factory solenoid...

Dual outlet-type BOV. Dual Port vents both to the atmosphere and back into the air intake. Ports with sequential timing allow quieter operation during everyday driving while getting all the benefits of a vent-to-atmosphere BOV under race conditions. They...

If cars like yours typically suffer issues such as backfiring and stalling when using a fixed-ratio atmosphere-venting BOV, the Respons can help. By adjusting the venting bias to suit the car you can achieve a blow-off sound without having to put up with...

The Kompact Dual Port blow-off valve directly replaces the stock bypass valve on the Subaru WRX MY08-14 and the new Nissan Juke/Pulsar Turbo. Standard valves crack with age and heat cycling and rely on rubber diaphragms that perish. They're also not...

The legend continues! Turbosmart's VeePort Pro is an evolution of the original VeePort, now 20% smaller and 33% lighter. Based on Turbosmart's BOV5 architecture, the VeePort Pro offers huge performance with a small footprint. Built on our Motorsport...

ALL THE PERFORMANCE WITH OR WITHOUT THE NOISE!, GFB's Mach 2 utilises GFB's proven TMS Technology to ensure rapid boost recovery on gearshift and optimum throttle response, as well as the ability to withstand boost pressures of 100psi+. Put simply, it...

The DVX range covers vehicles that can't fit or use valves like the Respons or Deceptor Pro II, and each version in the range is designed specifically for its application, ensuring the best fit and performance.This Part...

ALL THE PERFORMANCE WITH OR WITHOUT THE NOISE!, GFB's Mach 2 utilises GFB's proven TMS Technology to ensure rapid boost recovery on gearshift and optimum throttle response, as well as the ability to withstand boost pressures of 100psi+. Put simply, it...