Yea I was thinking the same thing. I think it would be easier to tune for an intercooler too. And a lot easier of an install lol But I have always wanted a cam

Polishing is pretty straight forward. Just start with a really low grit and work your way to a really high grit. But the shape of the blower makes it really hard with all the little nooks and crannys. It can be done just takes a lot of time. If you have a gen 3 and your pulling it off anyway you might as well open the V up a little bit by just removing the tabs and smooth everything out.