Ok so my Catalytic converters seem to have a tick in them, not sure why or how to get rid of it. Do they make a performance Cat to swap out that I can still pass emissions with and also I dont want any gauge lights on. Or should I just look at OEM ones and swap them. I think its the back 2 that are ticking, not sure what the front and backs do differently so if you guys could clue me in Id appreciate it.

Thanks

 

Im not sure the difference, but a lot of ppl take the back ones off. The front ones hold the O2 sensors which will cause you to throw codes. Anyone correct me if im wrong, you shouldnt throw codes by removing the back cats.

 

I believe magnaflow makes a high flow direct fit, or the universal cat also. If you have a normally aspirated engine there should be no need for "high flow" cats. That is for the forward cats.....I don't know about the rears except for all the threads about removing the rear. That is not a recommendation to remove the rears.