FatSam2010

couple questions..

im about to pay my balt off and i want to keep it na, my plans are to lower it and get some front and rear sway bars (im looking at the sport plus kit from eibach, that has the sportline springs and front and rear sway bars) but i live in illinois, its got some rough roads and this will be my dd so im wondering if thats a smart idea since i dont want to hit a pot hole and destroy my car :P

i also want to put in an intake.. ive heard best reviews on here from k&n? anyone have any opinions? ram or cai?

i know i want to do 2.4 im and tb, those are bolt ons? im trying to keep this simple so im basically wondering if this is bolt on basic stuff? i know ill need a tune for the tb

last but not least exhaust, i know i want a header and downpipe, im leaning towards badmab header, heard good things about that, and zzp downpipe, questions are what comes after the downpipe? i know its a noob question but thats why im keeping this an easier project and on zzp some of the options are "offroad -no o2 bung" "offroad -with o2 bung" and "high flow cat" which of those would i want? idk what the o2 bung is? also do i want an extra bung?

haha sorry for such a long thread and so many questions but i just want to be sure about what i purchase when i do, and one more question, the thing that can lock/unlock/open the trunk on my keys whatever its called wont work, it will pop the trunk but wont lock or unlock the car anymore? wtf do i do? thanksss

CobaltLs505

iTrader: (5)

Get a Injen intake IMO its better u could switch from CAI to SRI anytime or vise versa

My old set up was bad mab header with a 2.5in ZZP downpipe get it catted (high flow cat) catless in a N/A is a and get a O2 bung for your O2 sensor

FatSam2010

What exactly is the difference between cai and sri? Does one give more power?

CobaltLs505

iTrader: (5)

CAI is better it'll gain slightly more power but beware if it sucks a lot of water your car will hydrolock and SRI still gains some power but not to much. I had injen CAI in the summer and in winter I switched back to SRI

FatSam2010

makes sense, do you have the 2.4 im and tb? do you know how basic it is?

CobaltLs505

iTrader: (5)

I don't but I know you'll need a tune for the 2.4 tb

FatSam2010

i knew that, this is my first attempt messing around with this **** so im trying to make a relatively easy upgrade, thats why im not messing with internals or trying to boost it :P

ScottxKillyou

As far as the downpipe is concerned, you need to have a catalytic converter on it to stay legal and pass emissions. There are two 02 sensors on the pipe (one before the cat, and one after). The first one helps the computer calculate air/fuel ratios, so i wouldn't mess with it. The second one is pretty much useless and doesn't do anything but monitor the cat and make sure you're not killing the ozone and all that crap. If you decide to get a catless downpipe you'll get an engine code saying something like "catalyst efficiency bank 1 sensor 2 no response". There are a few ways around this. You can either get a tune and have them eliminate the 2nd sensor entirely, or try to trick the computer by making the 02 sensor not stick as far into the pipe, thus reducing the amount of exhaust that flows past it. Keep in mind that doing either of those is still illegal because the environmentalists said so.

CobaltLs505

iTrader: (5)

I've heard its easy there's a How To about the intake manifold somewhere

CobaltLs505

iTrader: (5)

That's in some states cause in NM only albuquerque does does emissions no where else in NM. He could keep the stock and when he's gonna go to a emission test he could install the stock dp back on and pass

ScottxKillyou

ya i know, but there would still be an annoying check engine light on for the entire time between tests

CobaltLs505

iTrader: (5)

True unless he gets it tuned

FatSam2010

Well I definitely want the cat on the dp, but does that eliminate the first o2 bung? Or is it still there even though I opt for the high flow cat?

nhanson

iTrader: (1)

there will always be the first O2 bung...you also want the rear one too

Check my sig for what I chose. ZZP is gonna be a bit more spendy but is good quality. The megan catback sounds like crap so do something quieter.

07cobaltLScoupe

ZZP 2.5 catted with both O2 bungs is what ill be getting at some point, i just have the gmpp catback exhaust so far but to me that sounds the best but is pricey new, ive heard good things of tsudo thou too. regarding intake injex or k&n seems to be the best two. with suspension i have the eibach pro- kit springs without the sway bars and it handles almost like stock but only lowered about 1.5" all the way around, the sportlines will lower more but will ride very harsh compared to stock. and yeah you'll need a tune for the 2.4 TB

FatSam2010

as far as ride quality goes i dont care so much because my old trucks suspension was incredibly bad and i got used to it, im more worried about lowering it with the sportlines and bottoming out in a pothole or something because the roads around where i live are absolute ****.. so basically im wondering if i should not lower it so much to avoid that?

CobaltMcgee

i have sportlines on my cobalt and it really isnt that bad. if its a pothole it should be avoided reguardless. i have some rough roads where i live and its not bad at all. the springs stiffed up the suspension a bit. and besides stock the car sits like a full foot off the ground so sportlines give it the best look imo

06_cobalt

Op as for the intake it's gonna depend on whether you have SAI or not (look for a tube coming off the top of your air box lid on the right side.) If you do go K&N. If not I'd still probably go with K&N but the Injen is a good one too.

Yes the intake mani and tb are bolt on and if you have any mechanical skill you can do it. Just be patient.

Get the badmab header like you said. Excellent quality and dirt cheap. As for the ZZP downpipe get the 2.5 inch one with a cat. Unless you have SAI then PPE makes a header/downpipe combo for SAI cars. After the downpipe you have the cat-back exhaust. If you want one that will sound good go with the GMPP exhaust.

And as for tuning for the throttle body you could wait until you put everything on a tune for all of it to maximize their potential.

As for your last question it's a key fob and you have to go to the dealer and get a new one.

Hope this helps

conerboner

iTrader: (4)

if you don't have the sai i'm trying to sell my black injen intake..

FatSam2010

How much?