Quick view Go Fast Bits GFB 03-10 Evo 8-10 Deceptor Pro II Blow Off Valve Kit - T9533 Compare $504.00 $453.99 Control the sound of your BOV "ON-THE-FLY" Go on, admit it. There are times you wish you could have that signature turbo blow off sound, but you're not prepared to listen to it all the time. GFB's Deceptor Pro II delivers just what you need ? the ability... Add to Cart Add to Cart