Thread: Hey. new gxp owner here. Need some help with mufflers !!

I think I found the stockers on Summit. No idea the part number, but I remember they were walkers (brand). You won't need a whole cat-back or anything.

I had the exhaust stuff written down, but I found it searching this site. They're 2 1/4" offset inlet, center out I believe. Call a local shop to make sure.

Searched Walkers site..no listing for 5.3L ???

Called 2 local shops and was told same thing, nothing showing for the 5.3 without the whole cat-back

Why not just use some muffler tape for the time being to get thru, go to another location if need be. there are no real direct bot on beside Walker, and even those require work. check this thread.

http://ls1tech.com/forums/ls4-perfor...ust-today.html

I have a 06 GXP same problem, no mufflers listed. Look up same year 3.8 mufflers work, hangers are same inlet same just cut behind old muffler, have to get your tips welded on.