Originally Posted by 1turbofocus
A light weight Fly on the Focus you cannot tell it revs faster and it adds little to no power
granted it doesnt add power, but shaving 16 lbs of rotating mass can be felt, and seen, and heard, lol. my car does spin up a fair bit faster than a stocker, and it also doesn't hang at rpm anymore. it jsut drops right off. (unless the throttlebody is dirty again.