Hey guys.

First off, I wanted to know what size the diameter of the tubing was. Especially what it is at the muffler inlet.

Also, what kind of exhausts do you guys have? Any custom set-ups? I put 2 Dynomax Super-Turbos on my Monte and I love them. I was thinking of the same route for the Cobalt instead of a can type deal or something that costs 600 dollars.

 

if your asking what the stock pipe is. it's 2.5 up till the rear axle then it drops down to 2.25 for the rest of the way.

 

Try the gm performance catback you will love it,it just seems like it is meant for the car

 

So the factory muffler diameter for the inlet tube is 2 1/4?

 

I Dont know about that. I believe it to be 2.5 all the way. But I have the Corsa Touring. LOVE it. Very deep and not too loud. But if you want louder ( which sometimes I would have liked to have) then get the sport. It has a more pronounced bark. I should have got the sport but i dont like annoying people. Definitely feel the performance gains too.

 

there is a group buy going on right now the gm catback for 325.00 it is stainless but not polished,check out Administrator Jonel,dyno he got I think 14hp from the GM exaust

 

yup, if you look at it you will see where it drops down in size right before the rear axle.

 

Yeah, when I was under there to paint my muffler casing, I was excited to unbolt the exhaust somewhere and put a few different mufflers up to the tubing to see how they sound. That was shot down in a matter of seconds because the bolts to do that are in the middle of the car. lol. Not somewhere by the rear suspension like I assumed.

 

G5Mike, omg where is this group buy you speak off? omg omgomg omg

 

i dont know,it is being done through crate engine depot,member Astromeneus is doing it, check under the exaust section

 

Stock exhaust behind the cat is 2.5" until right before the axle. Then it drops to 2.25" over the axle and into the muffler. I had a custom exhaust put on by a local shop (1st-Try Engineering in Robinson) where they made it a full 2.5" mandrel bent over the axle into my muffler which is a straight through 2.5" twin loop design (Mugen design). It sounded good... then I had the cat taken off in favor of a straight pipe... that made it kinda loud and obnoxious, but gained me some power. I have a video clip online that I can pm you a link for if you're interested.

 

How'd that sound after some time? It sounded cool when you had it done...

 

Sounds better now... in my opinion. It's a little deeper than when I first had it done. I've been known to shoot flames out the exhaust... lol.

 

haha!

It sounded real nice when it was first done. Then as it wore in that it started sounding a bit off like when I was driving it. But I'm glad to hear that it sounds better.

 

so if given the choice...what would sound better with my GMPP intake? GMPP performance or touring?

 

performance exaust,is ******* aggressive,Ilove it

 

sweet. i might be getting 700$ out of these kids that vandalised my car. so i might either get an in dash dvd player or the performance exhaust.

 

Go for the exhaust. In-dash's are stolen around here constantly. It'd take a bit more work to steal a cat-back.

 

yea i am kinda worried about it getting stolen...i really would just love to have some ipod playback though!

 

I have an FM adaptor. It's alright. Kinda fuzzy. But inmy Monte, I have a tape adaptor. It's SO much better. I don't have a tape in my Cobalt though. You probably don't either. If you want to get the IPod thing going, just get a normal in-dash player. Alpine and Sony I know for a fact have IPod stuff. I bet there's a ton more by now. I was thinking of putting an Alpine in...

 

Pioneer has some great head units that have adapters for iPods. They even have the kind that will allow browsing and choosing the songs on the actual head unit, as opposed to just an audio input jack where you'd still have to browse the iPod on the actual iPod.

 

they also make inline FM modulators. basically, it goes in-line with the antenna hook up. they work pretty well, used on for the XM in my dads impala.

i have an alpine with it built in in my BMW. it's REALLY nice to be able to control it from the radio, but if i was going that route in my balt, i'd get the blacktie radio so that i can continue to use my wheel controls and maintain the OEM look. not too many aftermarkets ever look as good or last as long as stock.

 

Actually, Pioneer has units that interface with the steering wheel controls. I think PAC makes them. You can continue to use your steering wheel controls, and have iPod control on your h/u. That's my ultimate goal. But I need to go fast first.... so funds are spent on go-fast toys.

 

but all those players arent double DIN and i think they look too flashy.

 

My OEM radio is the Pioneer/MP3 one and it loads MP3 CD's MAD SLOW. lol. I saw that pretty much every other newer GM had the auxilery input on the radio but the cobalt in 2006. That pissed me off.

I had 2 Pioneer aftermarket radios and had no problems with either. I have also had an older alpine radio and also had no problems.

BTW: There are a few double din radios. But they generally look terrible. Pioneer has one...