"Constructed of T-304 stainless steel with free-flowing mandrel bent tubing. Features semi-polished muffler with two distinctive sounds that meet all Federal decibel requirements: Touring (more aggressive than stock) and Performance (much more aggressive than stock). "

I am no car expert but i was thinking of adding this to my Cobalt. Does either of these add any HP or Torque to the car or it is just for looks ?

 

Welcome to the site...
I've added the performance cat-back to my car.
Here is what I got from it
https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/06-ss-sc-dyno-numbers-9926/
I got it for $420 shipped, lemme know what you think..

 

Dont.

Next time for future posts, you might want to include a brand...............

 

Now i know u added the Injen air intake too. So did just the GM cat back really add anythinbg to you car or did it just make what you ahve better. Also i ahve been looking at air intakes ive seen Injen and K&N u got any recommendations.

 

Use the search function, you will have plenty to read.

 

Which exhaust is this ?

You will proly get anywhere from 5-10 improvement on both Torque and HP.

 

Honestly, not real sure.
In the future or on a stock car I'd go with a set-up from CTI. The complete set-up, from the header to the tip. It runs around $1000 and should open things up for good numbers.
As far as intakes go, the K&N fits best, the Injen looks great...they do almost the same for performance. Don't forget the K&N drop in filter does almost the same thing for a lot less money.

 

that, I believe, is the GMPP exhaust.

 

actually, what do you want to do with the car..??
figure that out and then we can go somewhere... make sense..??

 

I like speed and i want to make it as quick as i can with the money i can spare.

 

ok, thats what I wanted to hear
I think that an exhaust system should be the first thing...not sure which one just yet. The cat and the muffler are the constrictions right now....find an exhaust that replaces those and it'll be a start.

I replaced my exhaust and I have shown what it has gained, I know there are better exhausts ....Anyone have any suggestions..??

 

For a full setup, I'd say full exhaust, intake, manifold, stage 2, 2.8 pulley, control arm bushings, motor/transmounts, port/polished S/C, lighter/smaller wheels, new pistons, clutch/flywheel(Flywheel only if you're making this a SERIOUS race car). That's all I got so far

 

I'm not sure about which intake to recommend. I recommended the CTI set-up (header to tip) for the exhaust.

Personally, I'm waiting on the Center Force clutch for a bit, its in testing. I think Clutch Masters has one out too. The polishing and porting on the SC has been done, no numbers yet.

He'll be broke if he gets it all at once although that is the way to go

 

I had planned to take this in stages. Over a period of time not all at once

1. Strut Bar
2. Then either K&N or Injen intake
3. The Catback Performance
4. Then hopefully by then Stage 1 and 2 will be more avilable. and not on back order.

 

I'd say build your support before anything else. Get your strut bar, springs, bushings and mounts, then go for the power. Gobs of HP mean nothing if your car can't handle it. That's my route, but to each their own.

 

That a really good point but that brings up another question what kinda horsepower can the stock Cobalt support before more advanced springs, bushings and mounts are needed ?

 

To be honest, I wouldn't know exactly. They used the factory suspension on the Grand-AM car, and I think that was in the high 200's. I'd reccommend doing it regardless, just to be sure, but that's just me.

The bushings and mounts eliminate the wheel hop, the springs and strut bars imporve the handling

 

Actually, now that I think about it, it doesn't matter. the suspension isn't necessarily going to be destroyed due to HP, you want to improve upon it so that as your HP increases, you can control the vehicle better, so you don't end up losing control, and wrecking your car.

 

I totallly agree with you u dont want something u cant control u have any good sites i can look at for suspension. Also i am no mechanic intalling this stuff would be very diffucult to intall on my own.

 

www.eibach.com, Get the sportlines
www.jbodyperformance.com for the bushings
www.dcsports.com for the strut bar I think

Ask Doc, he has them all(accept the bushings), he'll know better than me

 

www.turbotechracing.com for the sportlines and strut bar

I'd look at coil-overs if you want real adjustability

 

Coil overs for 1200 bucks, he'll be broke with those alone

 

people are finding problems with the stock clutch with big hp increases (obviously). it is expensive, but everyone is happy with a stage 2 (+) clutch. keep that in mind aswell. and if you have not noticed the stock engine mounts allow the engine to slam into the firewall on a hard start.

from a catback exhaust, expect 5-10 hp. the sound and looks are certainly something to consider if you are into that sort of thing. none of the exhausts sound too ricey. you have the option of Borla, Corsa, GMPP, Magnaflow, Vibrant (?), .... prob a couple im forgetting. :P

i would say that a strut bar, CAI, and exhaust would be a good routte for first parts. doesnt void the warranty and is cheap power.... sort of