12 hp from GMPP Performance exhaust!

I ran my car stock and ran it again after the GMPP Performance catback install.
Huge thanks to Tom at http://crateenginedepot.com for the awesome deals and service. Keep an eye for the next group buy on these.

Best Stock Dyno Run:
211.1 hp 180.3 tq

Best Run with GMPP catback ONLY
223.1 hp 190.3 tq


On The Dyno


2 Best Stock Dyno Runs
1.

2.


2 Best runs with only GMPP catback
1.

2.




Install pics


Got to cut the stock pipe to take it off. This is where we cut it.











If you want to hear the difference in the sound….

Right Click and Save As to Play Vidoes.

Stock Exhaust Video

GMPP Exhaust Video

I apologies for the crappy camera

 

finally someone has the intelligence to do the install right after original dyno to show real world gains

 

i knew i felt a nice kick in the ass when i installed mine

 

^ for sure

 

12hp is a nice gain jonel! makes me wanna get one as well ;P

 

Thats nice to hear,I did'nt think that exhaust would put down that kind of power because of
it's 2 1/4 size.What was the temp. difference between your stock run and your gmpp exhaust.

 

sounds good man what did that run you by chance

 

stupid question but i was just wonderingif that is the touring or the sport version GMPP Exhaust and BTW Your Car SPITS NOW U SHOULD PUNISH IT!!!

 

Nice gains, I can't wait to get mine on.

 

Nice gains, and I like the sound.

 

I was so happy to get rid of that exhaust when I had it on my car, I went from a fat bitch a skinny bitch and got performance and weight reduction at the same time

 

Great! somebody finally went and did it, probly 9hp for the 2.4 though?

 

was this done the same day?
if not was the out side tempeture the same

thanks

Carlos A

 

would you expect to see the same gains from a touring system and a sport system?

 

Very nice write up, dynos and vids included. Doesn't get much better than that. These results make me very happy. I can't wait to bolt mine up.

 

They are the exact same gains,just different tones is all

 

Exactly^^^ 12hp is a great gain. I can't believe it!

 

12 hp is alot for the smallest aftermarket exhaust out there. Somethings weird but whatever it is it good for jony

 

I agree.

The 2 dyno's are a week apart and at different times of the day.

Was it hot during the first session?

But like you said, good gains.

 

dam those are some nice gains on a catback ****

12 hps 10tq very nice

 

very nice gains dude

im sure you'll see even more with that gmpp manifold

 

so im still wondering if thats the turing or sport

 

You got my vote! I think im getting 1 this week- anybody know where i could get the best pricing? Thanks

 

paceperformance.com

354.95

 

Holy uncompressed video, Batman!

Nice gains, though! Exhaust will likely be one of my last mods, if not the last, but this will help me have my decision made when the time comes!