Jaekeem, thanks for pitching in. I guess a 10% powerloss to the rear is not unheard of if we believe the numbers posted by BMW. I still think gaining 30 - 50 hp to the wheels is fantastic esp. If I had nothing else to change besides the ecu piggyback. Like I said I will let you guys know what I think as soon as I try it. BTW, I did a stupid run 2 days ago and hit the speed max which to my surprise was capped at 210 KM/hr!! I thought the sport package eliminated the speed limiter but I guess not
. Anyone know if the JB3 erases the speedlimit?
MBA