Installed the accufab plenum and 70mm throttle body last week. It gave me very nice throttle response. Also could fill some horsepower gains. If your out to buy a new plenum this is the one. MODS:borla cat-back, bbk x-pipe, plasma-booster, steeda pulleys, steeda TA, accufab plenum, 70mm throttle body, 3.90 gears, steeda tri-ax shifter, K&N F.I.P.K. intake kit.