here's some mig wire for about 30 dollars:
http://www.grainger.com/Grainger/wwg/itemDetailsRender.shtml?xi=xi&ItemId=1613564463&ccitem=
As far as back gassing the weld, I worry about alot of different things, but the internal appearance of my exhaust pipes is not one of them. Especially for a migged slip joint between the tubes.
From the pictures, I think it looks great.
http://www.grainger.com/Grainger/wwg/itemDetailsRender.shtml?xi=xi&ItemId=1613564463&ccitem=
As far as back gassing the weld, I worry about alot of different things, but the internal appearance of my exhaust pipes is not one of them. Especially for a migged slip joint between the tubes.
From the pictures, I think it looks great.