Gmpp
#1
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Gmpp
where is the cheapest place to get GMPPs? after looking around for some time now and watching videos and everything i am pretty sure i am going with the GMPP intake, header, and cat-back. but where is the best place to buy them? should i head to a dealership? online?
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#7
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I ordered mine from ced 1 week ago, its the cheapest place, get it now before they run out of stock and boost up the prices!!! gm performence exhaust all the way!!!
#11
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Tsh i hated my CA header the #4 primary was sitin on my water pipe and when i started to tightin it down it made the pipe leak coolant I had to headt the header up and dent it quit a bit...dont even get me started on that damn XTC Dp...lol but the GMPP fit perfect yea I was very happy with CED highly recomended by me lol
#12
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Tsh i hated my CA header the #4 primary was sitin on my water pipe and when i started to tightin it down it made the pipe leak coolant I had to headt the header up and dent it quit a bit...dont even get me started on that damn XTC Dp...lol but the GMPP fit perfect yea I was very happy with CED highly recomended by me lol
The GMPP fits great but I will give you my stock mani and hone it out for 100 bux cheaper than GM.
30-35 CFM gain...what a joke
#13
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Funny Sean, that the Cobalt Addiction header and XTC DP fit the Ion with no promblem and it was made for the coablt.
Oh yeah Sean are you still getting the random CEL every once in a while?
Oh yeah Sean are you still getting the random CEL every once in a while?
#17
i was also looking into a header and a downpipe for my g5 gt and i was wondering which way to go. i was planning on the ca header and xtc downpipe but if it is just going to cause problems then maybe i should go zzp. pretty much i want good gains with the least amount of problems(im sure everyone does). so for u guys that have already got them what do u think? there is the option if gmpp but it doesnt seem worth it for the honed header and there is no gmpp downpipe.
#19
I'm not convinced that a header gives you enough HP gain over the GMPP Ext-Honed Manifold to warrant the higher priced header either. I look at the fact that the LSJ engine makes 205-240 HP (stock to stage 2) with the GMPP Ext-Honed manifold -- so a 2.4 pushing the full 171-173 HP probably has no need for much more. Certainly the LSJ pushes more air through it's exhaust system then the LE5 does.
#20
I'm not convinced that a header gives you enough HP gain over the GMPP Ext-Honed Manifold to warrant the higher priced header either. I look at the fact that the LSJ engine makes 205-240 HP (stock to stage 2) with the GMPP Ext-Honed manifold -- so a 2.4 pushing the full 171-173 HP probably has no need for much more. Certainly the LSJ pushes more air through it's exhaust system then the LE5 does.
#22
hmm interesting well i was planning on going the ca route in the begginning but if i would get the gmpp if it gave close to the same results plus it would keep warranty on the exhaust manifold. if the ca header and xtc downpipe give the best gains and there arent any problems with them as far as fittting or cels then that is the route i will take. have u guys had any problems with cobalt addiction as far as shipping and whatnot because i have read posts im not sure if it was on here or g5club.net but some people say that have had some issues with getting there stuff.
#23
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I had no issues getting my stuff. But are cars most of the time will throw a CEL with a high flow cat because it is flowing just that much more air then the stock cat.
#25
well that sux but the only time that would be a problem is when u have to get it inspected what do u do then? or is there a way to not get a cel, ive heard that u should unhook the battery when installing performance parts would that help not get one or are u screwed either way.