AA Headers plus stock section 1 plus Supersprint Race Xpipe and Cans sounds awesome! It is not nearly as loud as I thought it would be but it is menacing. I let EPBrown drive my car last night and maybe he can share a third party impression of my cars exhaust. I do get a little nervous about taking out section 1 without putting in some sort of resonator though (maybe AR25 resonator).
2007 M Coupe w/NAV/Premium/Extended Leather, Clearbra, DICE, 4.10 BMW Motorsport Polished LSD, Active Autowerke Gen IV Headers, Supersprint Race Exhaust and X-Pipe, ESS Tuned DME, KWV3 Coilovers, Volk RE30, OEM Strut Tower Brace, Short Antenna, JL AMP, JL 10W7, Valentine V1.