I have a motordyne iso thermal 5/16 plenum spacer and an injen cai. I just purchased a borla td exhaust and an UR crank pulley. Will these 2 mods make any noticable difference? I have read about throttle response with the pulley. I'm sure its about the same deal for the exhaust? Cant wait to get 'em on though...
Borla TD sounds nice.

 

make your Injen CAI a short ram intake and you will definately feel the difference without exhaust.

 

What do I do with the maf? No use for it?