purewhitemonte
1/13/2008 8:21:59 AM
I'm a new member of the forum, but have been reading the posts on here for the past year. Wanted to put in my 2 cents on the GMPP (GM Performace Parts) exhaust system (#12498617) which I recenlty purchased from GM Parts Direct and had put on my monte. Removal of the stock exhaust went pretty smooth, and the installation of the new one went smooth also except for a few things.
1. The exhaust bracket kit that GMPP recommends (#12498653) has a few flaws:
a. The bracket (#10328741) with the kit is really intended ONLY for the 2000-2005 Impala. Reason I
say that is because this bracket will not give proper clearance or spacing for the 4 inch exhaust
tips that come with the upgrade exhaust system (#12498617) without any spacers as Donutboy
had to use to get the correct spacing to match the other side. The instruction sheet still has the
older part # (#10301945) which was updated by GMPP to the new one (#10328741), but it doesn't
reflect that yet. The correct bracket, which I had to order separately after temporarily using the
incorrect one, really to get is (#10328742) which I found from Corsa's website in their instructions
for their own exhaust system kit. (#10328742) is the bracket intended for the 2000-2005 Monte
Carlo and 1997-2004 Grand Prix since both of these cars use the same bracket, but GMPP is not
recommending any bracket kits except for (#12498653) for all three cars. And their instructions for
the exhaust system (#12498617) reflect this as well. So as a result, GM Parts Direct is making the
recommendation on their website as well from what the exhaust system instructions have.
b. The insulators (#10231659) that came with bracket kit were also different from the original ones I
had on the stock muffler which had (#10304424) insulators instead. So now, with the correct
bracket (#10328742) and two different types of insulators, the spacing on the exhaust tips still
do not match since GMPP had sent (#10231659) as the insulators to use on the bracket
&nb
Nocturnx
1/14/2008 12:27:56 PM
The new exhaust looks pretty solid man, and the mud-flaps look pretty bad*** as well, nice job. Great looking monte, I will have to wait till after work to listen to the sound clips.
vita
1/14/2008 6:41:11 PM
i LOVE the size of those tips... how big in diameter are they?
purewhitemonte
1/21/2008 9:02:38 AM
The size of the tips that come along with the GMPP exhaust system are a whopping 4 inches in diameter.
Sir Monte
3/12/2008 4:39:31 PM
That system looks and sounds sweeeeet. GMPP= GM PERFORMANCE PARTS.
Donutboy97
3/13/2008 10:12:06 AM
just to add to what purewhitemonte wrote (btw good report) I did find out later that they did send me the impala bracket, which is why I had to use spacers. I haven't swaped the bracket out yet but intend to this spring. Also, I made a FWI and that really opened up the sound and throttle responce. I still need to work on the appearence of the FWI. It's had to take it to shows and show the engine bay with it looking like it does.
