I will be ordering this part tomorrow for my Cobalt, and it is the catted version of it.

I have read some people have ran into some problems with CELs when they install these. Is that just the catless ones?

I really do not want a CEL, I don't see why i should throw one with a catted downpipe correct?


On a semi related note, I was going to take my old cat to the junk yard, my friend junks cars and he gets anywhere from 50-100 dollars for catalytic converters, are the cobalt ones pretty valuable?

Lastly, get different gaskets than the zzp ones is the trend I am seeing. Is that good info to follow?

 

The catted one with still throw codes. So your CEL will come on

 

what are your other mods??

 

yes you probably will throw a code, its no big deal though. i dunno about the value of the cat but as for the gaskets i recommend either remflex or stock/oem.

 

I used zzp's gasket. They worked fine.

 

Damn, I don't want a CEL. They annoy me and they kill the value of the car.

I just have the drop in KN filter in my car, otherwise it's stock.

 

i got 40 for my old cat. not bad if its broken but u can sell it for more on here if its working, theres always someone who needs one

 

do you plan on selling the car when you do the downpipe? It won't do anything to the value - you modding it brings the value down alone lol. Just get the parts on and then get a tune

 

Ya a tune will clear the codes

 

No, I plan on trading it in or something in a few years when I am done with college. I don't want a CEL because I think it just looks terrible. Is there any downpipe that wont throw a CEL

 

I don't think so.

 

Damn ;( ok thanks

 

Why are you getting upset? you can get a spacer for the O2 sensor to take it out of the exhaust stream to try and trick it even further. If it doesn't work, just get a "canned tune" from ZZP, they can turn the code off and dial in your tune for a bit more power

 

I emailed ZZP and asked them, I was told they don't throw a CEL.

The reason why I would be upset is because I need a new downpipe, and I do not want to replace it with a stock one. Im guessing if zzp told me it would be fine, it should be.

 

I have a 2.5" catted downpipe but i had a tune on it, thats why I couldnt give you any sound advise. but it they say it'll be fine, i'm sure it will. They have great customer service - best of luck!

 

Yes it will be fine. But your CEL will come on. I have the same downpipe and mine came on.

 

I got tuned for my DP, though catless and after about a year and a half the CEL came back. It is annoying but nothing more. Comes on after about 60 miles and then goes off for about the same. If it stays on I check to be sure its the stupid code and then delete it. Comes back though. It has got me wanting to go back to the extruded GM Manifold and dp.

 

awesome! im stock to and was thinking about a 2.5 catted also, will you make a video whenever you install it so i can see how loud it is??

 

it took mine months for the check engine light to come on but it finally happened. now i have to get it tuned so i can pass DEQ next month!

 

you can sell your stock downpipe fast on here for about $100

 

I offered mine to some dude for 100 and he turned me down lol

 

Damn, a 2.5" downpipe throws a CEL too huh? Cobalts sure are touchy.

 

I got another email from the zzp guy and he said as long as my car is running well, There should be no codes thrown.

 

it will be running fine the CEL just comes on for some reason.It has to do with the o2 sensor

 

If a CEL really bothers you invest in an interceptor gauge and you can shut it off when it comes on. It's a great thing to have regardless.