Whenever you take your car to the dealer for an ECU software update,BMW automatically lock your ECU after loading the updated software.
Most after market tuners takes a day or two to unlock your ECU so they can load the performance software again.
I went through it twice when i was NA !!!!
NO FEAR.NO LIMITS.NO EQUAL
Ess VT3 LC built motor,Volk TE37SL,Euro taillights,Dinan Xpipe,Custom Headers,Akra axle back CF tips,ModeCarbon FR lip,BMW CF wing
LOW BOOST 60-130 6.7 sec