ACS Pipes, just LOVE IT
The best E92 M3 I have heard to date was the Monster M3 in Cape Town, that was sadly crashed, but whatever pipe that guy had on produced a symphony of note
I know bout the frozen edition, but which one is the one that isn't painted and has like a brushed aluminium finish.. also sounds awesome and has a cone filter quite visible tucked in the bottom of the front bumper?