Originally Posted by
MadRod
Back to back test RS500 plenum against the Hart no other changes the Hart made an extra 37bhp on Norris Designs dyno. We are talking high end Spec here but something was working better thats for sure they were both spaced. Why buy a copy the Hart is proved to work never neard of such a result on a blatant cheap copy.
Well ill tell you now rod the hart was copied yes but after fitting both types id rather use the AS one as the hart finish threads ect are like a 5 year old has made them
Last edited by Jay,; Aug 15, 2012 at 08:28 AM.