GFB Mach 1 (part number 1001) reduces turbo lag whilst blasting out a head-turning WHOOOSH (or not)! It can be configured to fully recirculate or vent to atmosphere for silent or loud operation, and comes complete with the parts required to set it up either way.

The Mach 1 also features the GFB TMS advantage, which is designed specifically for the purpose of turbo lag reduction and improving throttle response. Tests show TMS features can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears. 

A range of adaptors are available for hose or flange mounted installation.

These unique products are manufactured in Australia to ISO 9001, ensuring they meet stringent quality requirements at all stages of manufacture.

Write a review

Please login or register to review

Subaru GFB/SCR Mach1 (35mm inlet-30mm outlet-30mm hose plug) Blow off valve

  • Brand: Go Fast Bits
  • Product Code: GFB
  • Availability: In Stock
  • £119.99

  • Ex Tax: £99.99