Question about x pipes with out cats

red3784 · 09-15-2005, 01:38 PM

if i got an xpipe with cats it wouldnt pass inspection right? cuz of the emissions

red3784 · 09-15-2005, 11:07 PM

anyone know?

karazuba · 09-15-2005, 11:52 PM

depends on the state.

GT's already have a crossover (H) pipe in them. If you keep your stock cat's, and then run a x-pipe with mufflers, you probably would be ok in a lot of places.

Removing the cat's will definitely fail you.

red3784 · 09-16-2005, 03:32 AM

cool good info.. so if i buy an x-pipe i dont need to get one with cats because i already have them?? sorry if i sound like an idiot ive just been trying suvs for a while so ive never been this in depth before

discofan · 09-16-2005, 01:28 PM

In Illinois, if you are worried about passing the emissions testing then:

Stay with your stock cats...

Anything after the cats such as the X-Pipe, side exhaust outlets or different mufflers
will not change the emission quality of the testing...

Other cats may effect the outcome...

Dave

GWFoos · 09-16-2005, 02:40 PM

It depends on the state, but...

An x-pipe w/o cats would fail you...

An x-pipe that attaches to the factory cats would not.

They both don't have cats, but be careful when ordering as there are those x-pipes that have a cat delete, which you don't want. What you want is the aftercat x-pipe.