Anyone have a hi-flow cat? any difference?

im thinking of getting a hi-flow and some random exhaust.. i was gonna get magnaflow cat back.. but i think its better to use that money for like a greddy TiC and hi flow cat...

since our piping already is 2.25 i dont see a point of a "cat-back"..

 

don't think a high flow cat would help much without some engine mods first, at least thats true for us 02 guys

 

Yes if your exhaust diameter is already 2.25 I would focus on other breather mods besides exhaust/cat. You really won't see any gains from that unless you are turbo