More details please. What did you pay, installed?
Originally Posted by GirlLuvMyBMW640
installed on my 2013 GC. Got it yesterday. Love the new sound. Sorry no video. Don't know how. But here is a quick PIC.
I also have a 640igc. How much louder is the performance vs our stock? Obnoxious? Some of the videos I've seen of it on 650's and F10's may not do it justice and sounds a but louder than I'd like. But I am looking for a little deeper bass in the exhaust and maybe about a 30% increase in volume.
Any effect at all on performance? And finally, how about sound from inside of car? Any droning? Reverb? Echo?
'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