Nice video! I know they'll sound different under load but the Miltek sounded the best, more refined. M Performance was sweet but at high revs it sounded tinny.
Need to do a drive-by and full driving sound battle !
2014  M135i, 3dr, MG, Auto, SP, CP, HS, HK and FBP
2011  Abarth 500, Funk White, Leather, H&R
2007  320d M-Sport Touring
Pre 2007 - GT TDI 4MO, Mk4 R32, A3 TQ, A3T, Cupra R and on and on and on.....