Hey guys Terry from BurgerMotorSport released a beta stage 1 tune for the 550.
BMS is known in the 335i community as one of the best tunes out there.(jb4)
The instillation took me about 20 minutes.
On the Front Heat exchangers there are two plugs you swap with the tune
,very simple to install .
The tune boosts the car 2.25+ over stock
torque everywhere no ,no more turbo lag .
and the best part is its only 400$.
And you can even log if you buy the cable and change boost . Im currently at
3.0+ can you say traction issues !!!
heres a link http://www.n54tech.com/forums/showthread.php?t=18035
So lets get more buys so we can see a stage 2