Hello,

wanted to know who has done the high flow cats mod and if they has seen any real gains in our cars.

Maybe better throttle response? Car pulls harder on the freeway? etc. Please let me know your experience with this mod.

Also noise increase significant over stock? Car sounds like crap now and you put your stock cats back on? Wish you bought test pipes instead? Please let me know your thoughts on this mod.

Talk to Tony at Fast Intentions (He's on the forum). He will give you a run down on what to expect. Guy knows his $hit.

You have to do more research man, use the search engine, people been using high flow cats for yeaaars. Power gain is noticeable, noise is much louder, depends what you get sometimes each hfc is more raspier than the other. Test pipes are more louder, more raspier, and stink like hell, so thats really up to you. If you have the money, go for it, but me I'm a HFC cat guy.