Quote:
Originally Posted by thecooltype
I just had mine done this morning but did not hear much of a difference.... perhaps I just haven't drove it much as yet
|
I had a JB4 on my car so it opens up the exhaust flap. When it's open, it's louder!
__________________
2018 M550I Xdrive Alpine White on Cognac Leather, Premium Enhanced Package, Drivers Assitance Plus, Remote Parking/display key, massage seats, 21 wheels style 629 Black Chrome. M performance brakes in blue, M performance carbon fibre diffuser, m performance side skirt extensions, m performance front lip. 45% tint, roof wrapped in gloss black.