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GFB 04-05 Miata / 93-98 Supra (w/ modification of factory hoses) TMS Respons Blow Off Valve Kit

Take control of your blow-off valve's sound with the GFB Respons. This innovative valve allows you to infinitely vary how much air is recirculated or vented to atmosphere, simply by twisting the adjustment ring. You can change the sound of your BOV from silent to ear-shattering!

Featuring GFB's proven TMS Technology, the Respons ensures rapid boost recovery on gearshift and optimum throttle response. It can also withstand boost pressures of 100 psi plus, making it the perfect solution for high-performance vehicles.

  • Patented Venting Bias Adjustment System
  • Infinitely adjustable between full recirc (silent) and full atmosphere (loud)
  • Change the venting bias simply by twisting the adjustment ring
Make Model Year Type
Mazda Miata 2004 Mazdaspeed
Mazda Miata 2005 Mazdaspeed
Subaru Impreza 1994 Base
Subaru Impreza 1994 L
Subaru Impreza 1994 LS
Subaru Impreza 1995 Base
Subaru Impreza 1995 L
Subaru Impreza 1995 LX
Subaru Impreza 1995 Outback
Subaru Impreza 1996 Brighton
Subaru Impreza 1996 L
Subaru Impreza 1996 LX
Subaru Impreza 1996 Outback
Toyota Supra 1993 Base
Toyota Supra 1993 Twin Turbo
Toyota Supra 1994 Base
Toyota Supra 1994 Twin Turbo
Toyota Supra 1995 Base
Toyota Supra 1995 Twin Turbo
Toyota Supra 1996 Base
Toyota Supra 1996 Twin Turbo
Toyota Supra 1997 Base
Toyota Supra 1997 Twin Turbo
Toyota Supra 1998 Base
Toyota Supra 1998 Twin Turbo
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