M sticker on non-M BMW, how much boost in performance?
I have 3 scenarios:
1. Trying to fool people without car/BMW knowledge. - People without car/BMW knowledge would not know anything about M or non-M anyways. Can't fool people who don't care.
2, Trying to fool people with more or less car/BMW knowledge. - For the majority of us here, already know what M cars should look like, these stickers can't fool us.
That leaves us to the last and only viable scenario #3.
3. SELF FOOL - all I can say is, congratulations, your car is now boosted by 2-3 times the HP to the level of an M car, yet keeping the same Fuel economy of a regular BMW.