Nothing against you, but you probably should have taken your car somewhere to have it installed. Or had a friend, if you didn't, that is familiar with working on cars to help you. Next time, take that into consideration. This way you won't have any headaches afterwards.

 

On one hand it could be just oil burning off. I know when i got my 10.5 hotside i freaked out on the first drive when i saw the smoke thru the vent, but it burnt off.

But i also have had crappy gaskets, like the ones that come with the Megan stuff. It crumbled to pieces in between my block/manifold, manifold/turbo and o2 housing. I could hear/smell the leak and see thin smoke from it too. So I went back to the stock metal gaskets and that solved my problem there, just a pain to unbolt and re-bolt all that because of some crap gaskets.

 

You need to get that taken care of. Driving it like that WILL break the other bolt, and then if you are lucky the crossbars will hold the exhaust up. Also there is most likely a leak there if there is only 1 screw. That thing has to be aligned nearly perfect. Otherwise be prepaired for exhaust smell everywhere and stains on your hood and everywhere else.

 

I had the same problem with the smoke when I installed my O2 housing. A lil to much on the anti sieze. The car was good after a couple days.

 

Anti seize burning off and/or the light film of oil on the part burning off. It'l go away