[sullyz]

+1. Akro is just sick, and amazing quality, just a little too quiet for my liking.

Are you referring to the Evo system or just the slip on. I think the Evo system sounds perfect, maybe not the loudest, but pretty loud and just right in my opinion.
sound quality > sound volume

Just as the kelleners+ssxpipe's unleashed the beast out of the s62 in the e39m5, the akra just perfectly compliments the s65 8cyl in the e92

I agree!

Now having said all that, the Gintani stuff is pretty damn loud AND sounds good! ... I think I'd still rock the Akrapovic Evolution though.