Well, I ordered the M Performance Exhaust. Should be at dealer tomorrow and will have installed at that time or Tuesday. A little nervous as I have no idea how it will sound. But, let's give it a whirl!
Wil attempt to take sound clip pre and post! No promises.
'13 640i Gran Coupe Alpine White/Cinnamon Brown, M-Sport, Driver Assistance, Lux Seating, Premium Sound, Full LED's
'10 Porsche Panamera S
'09 Maserati Quattroporte S
'08 550i Carbon Black/Natural Brown/Anthracite, Sport Pkg, Active Steering, Comfort access, Sport transmission, rear shades, NAV, Sirius, L7, Ipod/USB, PDC, Heated Front Seats.
'08 750i Sapphire Black/Natural Brown
'06 750i Sapphire Black/Natural Brown
'07 550i Sapphire Black/Black
'05 545i Silver Grey/Black