Well I had a leftover cigar and decided to do a smoke test as I'm trying to get my car in better shape than it is before I sell it. And I found a leak at the egr line that's connected to the base of the egr from the LIM. I wish I would've deleted the egr when I did the LIM gasket. So could I use some copper gasket to seal it? Also my airbox filled up with smoke and I'm thinking that's normal, correct?