Hope this isnt a repost . One of the editiors got a 07 SS sedan as a DD so their using it as a project car . I thought they were just doing all the GMMP mods as a 1 time article . At the end it says ....stay tuned , lots to come with this car .

So it , may o may not be a cool one to follow .

 

Hey cool. Be keeping an eye on that. The Sedan always seems left out.

 

Yeah they put the gmpp exhaust and intake and put it on the dyno.The exhaust gained 1.2 hp and 1.3lb-ft.The intake gained 6.8hp and 4.6lb-ft.

 

Using all the GMPP parts? What a waste

 

whp or hp?

seems like the exhaust really isn't worth it unless what you want is a nicer sound

anyone has a scan of that article?

 

finally sounds like some realistic dyno results cuz thats sure as hell how it felt with my car (even though its a 2.2)

 

are you talking about the intake or exhaust?

 

i just bought this mag today, and i noticed one bad ass gm product for 2008. The SS/TC HHR. ARe you kiddin!?! i ******* hate those things but now im thinking that i would truly rock the hell out of this car ! hahah 260 horse!

 

Wheel HP.

 

I bought the magazine today--just for this. Nice to see write ups on the 2.4L

Stock it ran 15.6@86mph--sadly they did not get to test it with the mods done--probably will at a later date.

The exhaust gain was extremely small---I wonder if (some how) an error occoured...

 

Yeah, I saw that the other day too. That makes THREE mags doing a Cobalt build now. HCI/Neil Tjin has that black SS/SC, PAS (Performance Auto & Sound) Mag was doing that yellow 2.4SS coupe there for a while.....haven't really seen much of it though lately......and now this mag is doing up the 2.4SS sedan. Wow, 3 mags, and 2 2.4SSs......not bad for us forgotten Cobalts, lol.

 

both of those #'s exactly sound right on.

definitely got nothin but a change of sound from exhaust (not counting header) and a little somethin from the intake so that sounds about right.

 

Too bad they didn't use the k/n typhoon intake. It would of been nice to getdyno numbers other than what k/n have reported.

 

hahn said that gm hi tech would be doing an article on that same 07 cobalt ss with their turbo kit. that is what i am looking for.

 

At least the series of tech articles will be worth a damn then

 

Can someone buy the magazine and scan the article. I tryed to find it on the internet but couldn't find it.

 

YEP, GMPP exhaust is garbage, I'll be buying Megan shortly.

 

The GMPP part is certainly not garbage. You only gain from exhaust when you need it.

If you start making some heat, the GMPP will be a great addition. But on a mostly factory car, you'll see little gain unless you were getting knock beforehand.

No question manufacturers make big claims.

In the end, most buy exhaust to get the impression/sound of speed.

 

No, it really is crap, I'm sad that I ever paid $500 for 1hp. I'll be either upgrading to 2.5" catback OR catbackless (nothing after downpipe). haha

 

i agree... plus, as i recall, GMPP quote it as ZERO ho gain

 

Yeah, the GMPP exhaust seems like a waste. Restrictive 2.25" piping size and a muffler/tip that basically looks stock.

Def not for me.

I've had the ARK N2, along with a CA header and XTC 2.5" de-cat downpipe on since November '06, and I love it. No dyno numbers, but def felt a nice increase in power and it sounds badass!!

 

yeah the stock look is great..i hate the big ass mufflers that just sit there...not a big fan of the ark...just looks..eh its not my taste.i doubt the gain is 1.2whp..how can a stock ss/sc dyno stock then with the gmpp exhaust and gain 12whp...hmmm. and then a 2.2 gain a similar gain even on that redline tv show...hmm and then how could the same car with the same size stock piping as the ss/sc get a 1.2whp...sounds odd to me guys....and isnt the gmpp manufactured by Borla??and then thats garbage..the ehxaust is not garbage the intake they make is for our car..end of story..haha