BMW 1 Series - Tech Talk For All Gen Of 1 Series
I have an 07 120d M Sport, which I am well pleased with, but after about 6 months I want more fun. I know previous generation diesels could be tuned by 30 - 40 bhp, but there seems to be difficulty with encryption on the later ECU's.
Does anybody know of any tuners who have cracked it yet, and...