loooks nice

Didn't mean to be a dick about the rounding out comment, but there's a lot you could do w/ a panel beater bag. What did you use to weld that?

Jasic Inverter Tig Welder

NICE!! I might have to send you some stuff and cash to make one for a buddy's eclipse!

definitely to cold...i suggest preheating the cast runners with the torch, the a/c wave will help clean it too making it alot easier to weld. the ported radius looks pretty good.

I wanted to round out the sides, but I did some research and this design flow best for the DSM.

Looks good. You can always improve on the nextone. The first one gets your feet wet. You should be straight from here out. Crank the amps up. Cast sucks, but its cheap

Before I do my next one I'm going to buy a welder with more amps. The 200 amps limits my ability to do much aluminum work.

What did you use to round the inside of the runners?

not bad. better than mines