i picked up more than half a second with my ****ty pacesetters.... besides the tune it has been my best mod so far. that and it opens the door for more air flow and further mods down the road.
pacesetters flow just like any other header. to call them ****ty because they dont seal from the factory okay (its an easy fix tho....) but to say there ****ty because they only pick up 4hp and are worthless.... ha