Does anyone know the part # for the gasket in front of the down-pipe? is it a big 4 bolt pattern or just a little oring like #4 here?: 2008 CHEVROLET COBALT Parts - GM Parts | GM Accessories | GM Parts House Store

I didn't notice a gasket when removing my down-pipe and want to make sure to get one if needed. I was looking for a normal one like the 3 bolt on the other side though so if it is the oring type I probably just missed it.

 

It's number 4 no doubt when you take the stock dp off that's all thats there it's not a full gasket covering the turbo flange

 

gotcha. that makes me feel better!

just for confirmation is this it? Ecotec Turbo Exhaust Gasket 12609878

 

Yes

 

You probably just didn't notice it because it doesn't just fall out. You have to grab it and pull it out.

 

related question.

what size bolts are they on the downpipe? i'm finally gonna get around to installing mine...p.sure i don't have he right size sockets though.

 

I wanna say they are 5/8 and get a universal socket and an 18 inch extension to do the install it will make you life 100x easier. Also invest in a can of pb blaster

 

^^^^Definately metric 15mm to be exact a wrench can get 3 of them ratchet with a deep socket but there is that one pita that you need an extension and universal.