Hi guys, I was wondering if the GMPP exaust systems (touring or performance) really gives 12 HP on a 2.2L Cobalt... I want to get this and the GMPP intake as well but don't want to spend all that money for 2-5 HP...

What your opinion or experience with this?

 

every exhaust dyno i have seen is 10-12

 

So it would be more if I include a GMPP intake? How much could that be?

 

is that the HP jump for SC's only?

 

^^ i came back to this thread to ask the same question, the only dyno charts ive seen for GMPP exhausts are from the 2.0s. anybody seen one or have one from a 2.2?

 

on speed channel there was a a 2.2 or 2.4 forget and did a before and after dyno with exhaust and intake and together it was 12 hp ... I think its 10-12 for all balts

 

12hp has only been proven on the 2.0sc that ive seen.
I doubt it would give that much on a 2.2/2.4 but ive been wrong before
Id love to be proved wrong in this. cuz it would be great for a 2.2 to get 12whp from an exhaust.

 

All the info I can offer is that it made my car more responsive. Feels like it pulls a tiny bit harder higher up, but I have an automatic so I dont experience the fun in full.

Touring is a softer low toned sound just fyi.

 

ok so basically, my question is, did it worth the money?

 

yes its worth the money

 

I have both the GMPP manifold and exhaust...It's a good combination to have

 

The horsepower gain is going to vary on all cars, including different SC's, but i believe that you can squeez an extra 10 horses from the 2.2

 

im with cyrix on this one, i have an auto and i noticed that my car pulls harder when im at higher speeds

 

Redline TV had an 06 Cobalt LS and dyno'd it stock at 125HP

then they installed the GMPP Performance Exaust and dyno'd it at 133HP (+8)

then they installed an Injen intake and dyno'd at 140HP (+7)

 

wow thats not bad at all just from intake and cat back, what i really want to hear are tq numbers

 

they dynoed the gm performance exhaust i think on the redline tv on speed network and it dynoed 12whp on a base 2.2

 

I have it on disc -- and NO I'm not going to download it. It's copyrighted material. I'll watch it again when I get the chance and get the Tq figures.
Funny thing is that it is an SAI equipped car but they didn't say what they did with the end of the SAI intake tube when they installed the Injen intake. You can see the installer holding the tube and then he just lets it go

 

Do it and see what happends...

Guessing won't do anything but mislead you.

 

YOU are a bad influence

 

How so?

 

I thought you meant post the copyright material and see what happens....

 

Oh no...I was talking to the original poster.

 

My bad.....

 

No problem.

 

where did you get the disc for the redline episode with the 2.2 ls