Indeed they do reprogram the ECU and remove the 128 mph governor. But, they also ADD their own governor at 155 mph. Their initial reports were that the X5 testbed they had kept on pulling very hard even at those high speeds. They decided to limit it to 155 mph instead.
Originally Posted by AndrewL
I was assuming that with the reprogramming of the ECU that the kit will eliminate the governor....never heard of a performance tuner still instill a 128mph topspeed.
I'm sure they could leave that part of the programming out for you.
Ask me what I DON'T
have on my X, it'll just be easier...