Jay-rod427
Well-Known Member
100% makes more than a few horses difference. Although i don't personally have track numbers to back that up yet. As far as the Kook's or any other there is no such thing as a high flow cat imo. So going aftermarket cats is going to be just as restrictive as stock cats.still debating it. I know a guy that works with GMs and says it isnt really worth much to go from cat to catless. Says that kooks green cats only creat a loss of less than a handful of horses.
Sponsored