Ok here goes....
im a new member with a Black 2.4l ss automatic (Gasp!) with about 32k miles on it
Not bad for a first car
but....i gots some questions
Im thinking about putting in the Gmpp products, b/c i cannot void the warranty on the car.
I am looking at all 3, the manifold, the intake, and the performance catback.
I need to know if the stock 2.4l ss muffler i have now is the same as the catback.
I need to know the horsies im gonna get added witht he mods
and i most importantly need to the price for all these

Thank you very much, and im glad to be a member!

 

dude from the sounds and what other people say dont waste your time and money on it they only add 1 whp or maybe 2

 

No, the muffler is not the same. With all three, you might gain 5-10hp. The intake and manifold probably cost around $250 each, and the exhaust is around $500.

By adding exhaust and intake, you only void the warranty on the exhaust and intake. Your transmission will never be affected by your intake, etc.

 

hmmm...
that doesn't seem like enough horsepower for what i would be spending....im not looking to spend a ton, but i would like increased sound and horsepower, without voiding the warranty.
Im pretty new to the modification world, so if yall have any suggestions on some relatively inexpensive exhaust systems and power boosters that wont void anything without making the engine sound too trashy it would be great

 

ull get more then that....the gmpp catback was rated to give 12hp

 

Uhhhhh, I'm pretty sure it only gives 0.5-1hp

There was a post about it with a link not too long ago

If you don't want to void ANYTHING, then go GMPP. But it's really not a big deal if you void the warranty on your exhaust by installing an aftermarket one. Because if your exhaust breaks, then you still have the stock one.

 

https://www.cobaltss.net/forums/dyno-results-170/my-gmpp-catback-dyno-results-32554/

there ya go bud

u think a 600 dollar catback is only gunna give u 1hp

 

Jonyyb has an S/C, as do you
this is the 2.4l forum
Some mods on the LSJ give better gains than on the LE5
Read this thread: https://www.cobaltss.net/forums/2-4l-le5-performance-tech-46/exhaust-no-horsepower-125420/

 

the GMPP I and E def give you more then 1 to 2 Hp. it gives you about 10hp. but please please keep in mind this is 10 WHP, def well wroth it. Sounds great, cars faster,better MPG, whats not to love
please read
http://www.gminsidenews.com/forums/f...d-my-g5-61682/
from the above link
Stock
153whp and 151 torque
GMPP Intake and Exhaust
165 hp and 162 torque
Gains
12whp and 11 torque

 

Really?
I wouldn't know as of yet, if I haven't seen exact dynos. But anything is possible.
I haven't decided on what exhaust yet for myself

edit:
nice
I had pointed that out because the poster had an S/C and showed a S/C dyno, which doesn't really apply to us 2.4 guys
good find though

 

did u click on the link.. the kid states his number befor and after

 

i had posted that before you added the link

 

gotcha ya

 

that dyno will def make me take a second look at the gmpp

 

That's just a rating, it isn't directed towards any specific model of the cobalt. which means they could have gotten that dyno number off the SS/SC cobalt ans just used that number.

In that link you posted the guy claimed his total gains from the I and E combined. There were no individual gains. I'm sure the exhaust does give you performance gains but not as much as the intake. The exhaust clearly isn't as good as they state when used on an NA application. They are beneficial, but not as much as people are trying to claim. I can't wait to get my GMPP performance exhaust though. Regaurdless of these claims.

 

http://www.crateenginedepot.com/stor...P1379C146.aspx


just going by what every place says

 

yup

 

Of course you are, cause you have the SS/SC model cobalt, as many others have said those figures are most likely based off a FI vehicle. Your follower, joey, well, he is just a puppet of today's society. Seems he'll do and believe anything he sees on the internet.

Nobody ever said there are no gains for an NA car, they only said (WITH HARD COPIES OF EVIDENCE) that the gains aren't as high as claimed to be for the NA cobalts.

As i said before though, i don't care cause i still want the GMPP performance exhaust. Does anyone have one for sale by any chance?

 

wow your a tool bag, how am i follower and or a puppet of todays society. I have both the GMPP Intake and Exhaust and from what the one kid posted on gminsder it def feels on par with thoes numbers. so how about u suck my puppet dick

 

on the site it just says cobalt/g5......nothing about the ss s/c

eh doesnt matter, im not arguing over a pos exhaust system, if anyone waste 600 on it so be it, i have the same thing for less than 200

 

Quit being an E-thug, your not impressing anyone. Its quite childish actually. All I was simply saying is that, yes in combination his numbers may be on par with yours, but if you seperate those there have been dyno sheets pointing out the GMPP exhaust isn't as beneficial as they claim.

Sorry, I'm not trying to argue over it either. I was just defending the fact that there are dyno sheets saying its not as high of a gain as gm claims. All I have is a 2.4L so that 2.25 exhaust is just fine for me. I'm gonna try to pick one up for 200 or 300 hundred as soon as i see one for sale somewhere.

 

they do sound nice tho, i just went custom cuz it was cheaper, flowmaster 40 series with gm double wall tip sounds exactly like the gmpp

 

Good deal... I would get an exhaust but I want to put new 4 wheel drive hubs in my truck before winter. Fiber glass boxes suck on those and its so light the 4 wheel drive becomes a necessity in New York winters.

 

well, im back
Like i stated before, im pretty new to the modification world, and i want my car to have more power, but not excessively. i was on youtube checking out samples of mods and i found the gmpp exaust and i thought it sounded great, but i do need the power to back it up. from what im hearing, it only gives 7-10 hp, and i dont know if that is enough for the money. If there are aftermarket exaust that cost the same or less and give more horsepower WITHOUT making it sound trashy, it would be fantastic if yall could post 'em. The same applies to intake.
Any other suggestions are MUCH appreciated.

 

Chances are, you are not going to get more than say 5 from exhaust alone. Adding an intake and header and downpipe with high flow cat will maximize the exhaust gains. Read up on the stickied threads in this forum for more info