intercooler piping??
 

im im just using regular piping, how can i make the beaded lip at the ends? what kind of tool would i need?

bead roller,my brother has/made one,or you can weld beads on the ends.it's prob. the easier way...

thanks!

Yes I welded mine. On aluminum you can customize a Vise grip and make it almost like a bead roller but take alot more time so I just welded mine.