GFB DECEPTOR PRO II Blow Off Valve 20mm Inlet/20mm Outlet | 2004-2005 Mazda Miata (T9520)

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$441.00 $490.00Instant Savings of 10% ($49.00)

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GFB Blow Off Valve - Deceptor Pro II:

So how much more can you do with a blow-o ff valve?

Well, the Deceptor Pro II takes the ‘Respons' concept even further:

Adjust your BOV venting bias electronically on-the-fly

Please Note: Some vehicles may require modification to the factory hoses, please review install instructions prior to purchase!


  • Revised porting to optimise flow and venting bias
  • Compact design fits in most factory valve locations
  • Direct bolt on for many vehicles


  • Remote proportional venting bias/volume control- from silent to loud or anywhere in between
  • Sleek, compact in-car BOV volume controller with backlit dial
  • End point adjustment to control maximum vent to atmosphere bias setting


  • 2004-2005 Mazda Miata (Only direct fit application)
  • 1993-2002 Toyota Supra
  • 1994-1996 Subaru WRX/STI
  • 1989-1993 Subaru Legacy RS Turbo
  • 1986-1995 Mazda RX7

What's In The Box?

  • 1 - GFB Deceptor Pro II



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