We the undersigned anxiously await an N55 tune for our 535i & xDrive BMWs, so that we can join our BMW brethren who have been enjoying tunes for F10 550s, F07 GTs, E90s, E92s, E93s. Furthmore, we F10 535i & xDrive owners want to experience - strike that - we crave the same joy of driving that countless BMW drivers with Dinan upgrades have experienced. You develop them…and we’ll buy them…and quickly please ; ) Sincerely, The Power Deprived.