Hey I just bought a 2008 Cobalt Ls with the 2.2l ecotec (manual) and I wanna do a "supertune" it. I now wish i bought a SS turbo instead but theres nothing i can do now but make it better. But heres a list of things i am putting into it and need some help with a few things.

Billet aluminum flywheel
Stage 2 or 3 clutch (need help finding this one)
headers
cold air intake
high flow cat./2 chamber muffler (custom)
multispark aftermarket ignition (msd)

and thinking on putting a turbo in it...

i cant seem to find the stage 2 clutch. im a newb when it comes to tuning cars so give me some feedback if you can.

 

first post welcome to the site........turbo would be a good option....ull have a nice sleeper

free bump no one has any thoughts for this guys build?

 

First thing I would do is Sportlines...lowered car looks great and makes you car handle better and stand out. Next Cold air kit. Helps power a little and sounds good. Put good clutch/flywheel on when orig dies. Headers are a bit of work. Why not kick ass 18 in wheels instead? Lots of used ones out there!

 

good call on the sportlines.........i gotta do mine up

jasonaudio has a sick deal on them but the sale is over tomorrow just send him a pm

 

/i just put on some sportmax 18s on it about a week ago and need to lower it since the wheels jacked it up about an inch. that was already in my agenda to lower it. what is the difference in sport lines and regular lowering kits? what is a good price on one?

 

to start with, turbotechracing.com is a great source of parts. The MSD ignition is not necessary as there are multiple ecotec members pushing near 500whp with absolutely no problems on the spark end. if you DO go turbo, all you'll need are some different spark plugs, so just a simple $15 upgrade

The header and downpipe in our cars is very restrictive, but the cat converter really keeps our cars from sounding like crap, so i would get a completely aftermarket exhaust for this car, but make sure it has a cat. Also,if you stay NA, 2.25" exhaust is good, and a 2.5" downpipe works as well. The GMPP exhaust is the only 2.25" i can think of, and there are numerous 2.5" downpipes out there. If you DO go turbo tho, a full 3" exhaust is probably your best bet, though you will want to hold off on ordering the header then, since you will just be replacing the header with a turbo manifold, effectively wasting any money you spend on said header.
Finally, turbobygarrett.com is probably your best source for a complete bolt on turbo. There are several other vendors that sell the same kit, some slightly more, some slightly less, but garrett makes top quality kits, so you can feel safe about this one.

 

i was told that i would have to upgrade/replace my computer chip for the turbo is that true?

 

no that is false...there are no chips and you do not need to replace your computer..but you will need a ecm reflash...that you can get from trifecta perfromance once you go turbo

 

as silent stated, you tune the computer thats already there, you dont swap out a new one. If your computer savvy think of it as a patch for a videogame or a BIOS update. You dont replace the component, just write over the old data

 

the only reason to get another pcm is for warranty issues
so they don't see you modded your car