arng22

so i got the GMPP stage 2 i was wondering what other GMPP parts there are that will not void my warrenty besides exhaust and manifold?

sorry if this is a repost or anything i just want to see a straight answer rather then browsing around in 10000000 dif threads


thanks!

DTM2188

I'm trying to think, but I'm drawing a blank...I don't think there is anything else. Actually there is the dual pass intercooler. Your best bet would be to look at crateenginedepot.com. They have all the GMPP products and some extras there.

martinsmu

Think the dual pass in considered off road = voids warrante

DTM2188

Really? They consider that "off-road use only"? Wow, didn't realize that.

arng22

Cobalt Cat-Back Exhaust System Touring 17802110


Cobalt Cat-Back Exhaust System Performance 17802111


what one is best it seems to be the same thing with a 200$ diffence...

DTM2188

I have the Sport Exhaust and love it. The difference is that the Touring is more quiet, a little louder than stock, but not as loud as the Sport. IMO, go with the Sport/Performance (whatever they call it ).

arng22

haah thats what im looking for loud!

and should i throw in the manifold for the hell of it...i just got money a bonus and i need a way to spend it


does the manifold do anything?

BCobaltSS

The dual pass is what they tell you to use in the instuctions for an upgade to Stage 3 but that will also help the performance of Stage 2 .So I would say no this would not void the waranty but then they probabley will only warranty it if it is installed by a dealer . Then you might as well forget it because it will cost you $500. Do it yourself. They would not release the part if they new that it would break down. Tha part is good for the motor because it is cooling it more.

DTM2188

^^^^Good point there. The manifold will help give you some added performance, but many people here seem that going with an aftermarket header will really be more beneficial. However, if your looking to only go with GMPP and warranty safe work, then its not a bad idea to buy as well.

OniMirage

the thing that voids warrenty is the off road portion which is the hot swap pcm because it supports nitrous and enables a high octane mode. My understanding is that if the other parts are purchased it shouldn't void warrenty but I haven't heard of anyone purchasing the dual pass by itself

BCobaltSS

Is anyone even installed the dual pas yet and can you feel any difference.

OniMirage

there isn't a large enough effeciency to notice on the butt dyno but your car will love you for it overall

ReMz

the goal is that you run cooler and safer ... not to gain noticeable horsepower. you may get a slight increase in hp, but not much.

martinsmu

I got the touring, it isnt loud at low RPM, but at full throttle is damn near as loud as the performance, it just sounds deeper. I personnaly woulnt go with sport over touring unless $$ was a serious issue. The touring is ALOT deeper and nicer sounding IMO