Not a head to head race but they compare various things like acceleration, sound, etc.
doublespaces Administrator Oct 18, 2016 9,318 4,354 0 AZ Ride 2009 E93 335i Jan 3, 2018 #1 Not a head to head race but they compare various things like acceleration, sound, etc.
R rickyboy1007 Private Jan 2, 2018 25 3 0 Ride 2015 BMW M4 Jan 3, 2018 #2 the fi exhaust sound so quiet at 01:50, is the valve not opened or what?
