LOL fingers.....hilarious.

 

It really should not be hard at all. My car is exposed to michigan winters and i had no problem swapping downpipes on jack stands. Dont pay a shop to do it. This is how you learn.

 

It was a little while ago but you still get on my nerves.
Okay I'll have to get some of that.
Thanks man, I talked to my buddy and his dad works on helicopters and he said he'll help get it off, but if I still have problems I'll be sure to hit you up. I didn't really wanna bother you with it though.

 

No bother. Im bored n don't want to mess with my car. Ill help ya out if u want

 

Its done! Thanks for suggesting that atf and acetone mix, really worked out for the best of things, did it with my bud.

 

Thats great man glad you where able to do it

 

Good work op.

2 technician points for you

 

Haha thanks. It sounds good

 

When I took my stock DP off a year ago, the nuts were so bad that one of them was literally just spinning on the stud. I had to cut it off. That was fun.

 

I put some anti-seize on the bolts so next time we do it, if we have to, then it'll be easier, also the automatic trans fluid and acetone really works wonders lol.

 

Never tried that before but i never have a problem with PB blaster and elbow grease.

 

My buddy had the trans fluid, and acetone was 3 dollars. Put it in a spray bottle and had a 3$ bottle of some badass penetrating oil.

 

Cold start
Rev

 

Sounds pretty good man

 

You're welcome lol best stuff I've ever used

 

Update for future references for people.
All bolts are 15mm. The O2 sensor I'm not sure since we used an adjustable wrench to take that off
Steps: did the bottom two bolts on the back of the down pipe and left the top one in, then undid all the front bolts on the downpipe, disconnected the O2 sensor from the plug, dropped the exhaust behind the downpipe off then hangers, then took off the top bolt on the back side of the downpipe.

Use the ATF(Automatic Transmission Fluid) and acetone mix 50/50 and let it sit like 15min as sc4door suggested earlier In the thread,

use extensions (longer than 1ft if you have them some shorter ones as well),

I ended up not having to use the swivel joint,

a thread in or weld on j-pipe WILL prevent engine codes(at least it did for me.)

disconnect the O2 sensor before pulling the stock downpipe off

Swap the O2 sensor into the j-pipe on the new downpipe (with some anti-seize on the threads)

When bolting the new downpipe on I only used a 3/8th drive ratchet and put anti-seize on the threads of all the bolts.

For some of you I know this is a no brainer but there may be people like I was where you just don't fully understand how to do it yourself.

Edit: you can use a breaker bar or a 1/2" drive socket to break the bolts loose, both seemed to work but stuck with the breaker bar for the good of the socket. So if you have a breaker bar use it, if not 1/2 drive works but probably not the best for it.

 

The proper way to r&r the O2 sensor is with a special O2 sensor socket. But in a pinch, the crescent will do. I'd still suggest to get a socket to apply the proper torque.

 

Yup those sockets also make the job a tad easier

 

whoa look at you. looks like you learned couple things, congrats

 

Can't tell if that's sarcastic or not but thanks lol

 

not at all, you were too hesitant and look how you did.

sometimes you gotta just dive in and go.

 

Yeah I guess so. I also tried rushing it the first time but the second time I took my time with my buddy and we got it.

 

That's how working on a cobalt goes, always add a couple hours at least.

 

Well in any car always add more time if its your first time doing a job (learning curve) after that for the most part everything gets easier

 

sounds good op... a lot of crackling. hows highway cruising, any drone?