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Discussion Starter #1
Hey guys,
I'm new to this forum. I just got a brand new 2008 Cobalt 2 door LT about 2 weeks ago. I love the car. It drives great (as I'm sure all you coablt owners are aware.) I got it with the 2.2L and its got a little pep to it. I want to start doing some things to it to get it up to par. I was just wondering if you guys could shoot me some suggestions for the following things I want to do. I apologize if the below questions have been asked already. I've been searching the net for the past week looking for info on upgraded 08's and havent found much. Thanks in advance and happy motoring.

New wheels! Steel and hubs just dont work for me. If I go to 16 inches will that void my warranty? If not, could someone give me suggestions on affordable yet decent performance tires? 15 inch or 16 inch.

Non warranty voiding performance upgrades. Are there any? I know I could get an intake and pull it off before I go to the dealer if I had to, but are there any that dont?

Lastly, a new exhaust. I want a system for power and decent sound. I would like to avoid the fart can sound and go for something deep. Suggestions/sound clips and vids?

Again thanks.

Here's my car.

 

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Congrats on the new car. I just got mine this past February. A few visual things that look good is debadge the car, remove the gm fender badges and the chevy emblem on rear as well as cobalt badging and possibly dealer badges if you have them. Paint the front chevy grill emblem. I dont think rims will void the warranty, keep the stock tires though, incase you dont want to take any chances so you can swap em out real quick before it would have to have work performed. If you need any sites to find parts, you can go to cobaltss.net and click on the links to alot of sites on the left side of the page. As for exhaust, Im sure some other people will tune in and give some advice on what is good.
 

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GM makes performance parts specifically for the cobalt that won't void your warranty such as the GMPP Performance Intake and Performance Exhaust etc... You can buy those straight off the dealer and they'll install them for you. Just to make sure, if you look into the intake, make sure your car doesn't have the SAI (
Secondary Air Injection) hose going into your stock airbox. If you do, they won't install the GMPP Intake cuz of it throwing a CEL. It is a rubber hose maybe an inch or so in diameter going into the top of your airbox. I ordered their intake thru the dealer and went in for the installation and they couldn't do it because of that second hose. Just a heads up!!! And yeah, debadging is also a good cheap visual mod and is pretty easy to do and makes a world of difference
 

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wow, the pic through me off, guess the '08 LT is the base one now, used to be an upgraded model before. Wheels should not void your warranty, heck, your dealer carries wheels to upgrade too and what not but they are expensive. Check out Tire rack or Discount Tire, they have some nice wheels. When I had my '07 LS I got MB 5-spoke wheels that were black w/ chrome lip and Yokohama tires. I went w/ 16's to avoid the speedo from getting off by much, the handling(from the tires) alone made the upgrade worth the 650 it cost for the tires, wheels were cheap(discount at the time, got them for under 400.

If you have the SAI or whatever there are intakes w/ that in mind, cannot remember the type, I think it was K&N.

Intake and exhaust are the best upgrades to start w/ imo.
 

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Dont DeBadge, Represent your love for Chevy, stick with the bowtie in the rear, these cars need some bling. Wheels I do 16 inch and lower it, but lowering may avoid suspenion warranty. I agree with an CAI and Exhaust are yet the best upgrade to start out with and then force induction but were talking WARRANTY DESTROYER there. Just stick with wheels and such! Oh and you can upgrade to new headlights (projectors).
 

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Thanks guys I appreciate that. And actually the LS is still lower than this. They come with nothing on them at all. This looks a hell of a lot better than the new LS. It came with 15 inchers so I wanna see about getting either the same size and good tires or 16's with better tires. If you guys could hook me up with a link for the CAI, that would be great. Im probably gonna stop buy the dealer tomorrow and see what they have. The guy who sold me the car is a kid and really down to earth. I told him about the wheels and parts and stuff and hes gonna find out what exactly voids the warranty and what doesnt and such. But seriously hook me up with some links dudes. Much appreciated.
 

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Just stopped in at the dealership. From what I take it, if i Get aftermarket wheels and tires I just have no more coverage on my tires and wheels. DUHHH! So I'm gonna start looking to see what I can find.
 

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Dont DeBadge, Represent your love for Chevy, stick with the bowtie in the rear, these cars need some bling. Wheels I do 16 inch and lower it, but lowering may avoid suspenion warranty. I agree with an CAI and Exhaust are yet the best upgrade to start out with and then force induction but were talking WARRANTY DESTROYER there. Just stick with wheels and such! Oh and you can upgrade to new headlights (projectors).
All engine modifications that dont come from the manufacturer specifically for your vehicle are "warranty destroyers" (as far as im aware). Also, there are no levels of voiding a warranty, there isnt hurting a warranty and outright killing it. You either have it or you dont.
 

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Just stopped in at the dealership. From what I take it, if i Get aftermarket wheels and tires I just have no more coverage on my tires and wheels. DUHHH! So I'm gonna start looking to see what I can find.
But who cares about stock steelies and the horrible continental tires anyway? Seriously, I drove those conts bald in 3 months...

Anything you do to your engine as stated will void your warranty, but they'll never know if it's easy enough to pull off and replace back to stock before you take it in for something...
 

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Ok, let's not mis-inform or scare anybody into not modding their cars. Changing out parts on your car does not void the warranty, and its definately not "you have it or you don't". Obviously the aftermarket part is not supported by your GM warranty but making changes does not void the entire cars warranty.

That means if you put on a K&N sri on your car and over oil the filter which screws up your MAF then GM is not responsible for replacing your MAF. If you put in an injen cai and drive through 3 feet of water causing the engine to suck in a bunch of water GM is not responsible for replacing your motor. It is very subjective and what you can and cannot do will vary by dealer, but obviously if you drop your car on sportlines you can't expect the dealer to keep replacing your struts! But if I leave my suspension alone and I build the motor, if my stock suspension fails its still going to be covered.

I took my car to one dealer for warranty work regarding my transmission. They were so inept I will not go back. They said that my "aftermarket floor mats" caused the clutch to not engage so it was not warranty work, one of the stupidest things I've ever heard probably said because he was too lazy to really do his job. They don't void your warranty, its not like that, but for that claim they would not have done warranty work. In fact he just told me to buy cobalt floormats and I'd be fine. The floormats were definately not the problem so I went somewhere else.

I called around and found a dealership in my area that has been a pleasure to work with so far. If you are worried about your warranty just play it safe, don't go overboard, go to a dealer of YOUR choice and if anything ever happens the burden of proof is on the dealership to prove that the aftermarket part caused the failure.
 

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But if I leave my suspension alone and I build the motor, if my stock suspension fails its still going to be covered.
Good luck with that. The dealership would just say that the more powerful motor was the reason behind the suspension failure, id bet money on that. In fact, you pretty much proved my point about dealerships being gay on aftermarket stuff with your floor mat situation.

The addition of non-GM powertrain parts to your vehicle will void your powertrain warranty, i promise. Maybe you can find a more accepting dealership, but i doubt it. All they have to do is phone into GM and say that your problem was caused by your aftermarket parts, and GM will void whatever you are trying to get fixed. 8/10 times thats gonna happen.
 
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