S-sguy

sorry to bug u guy i forgot to ask, does the straight slp y-pipe replace your cats?

chavez885

iTrader: (12)

It connect to your cat, I think they have an offroad y pipe which gets rid of the cat.

waldershrek

iTrader: (1)

If you are talking about pn# 31035 it installs behind the cats and just replaces the flat factory y pipe.

ms4z28

no they dont so if u still want then u just have to weld the cats to the y-pipe but if u want the best power and sound take off the cats cuz if u have LT headers they dont pass california smog anyways so just get some 3 in tubing and clamp those on then tack the clamp to the exhaust otherewise they will slide back and u will have a slight leak then you will have to move the clamps again and it becomes an annoyance.. i learned that the hard way