Your choices are right on target. A 28% extra can get very snap happy if packing too much weight. I would choose the DA for it's abundance of aftermarket exhaust options while sacrificing a tiny bit of extra weight to the evolution. You should be able to get a composite can. muffler to evan it out.

I remember to have read a few posts about evo 45 loosing the front bearing but have no positive info if that is still the case. Call before you buy.