At $395 the Stage 1 tune is quite good too. You'll be surprised. It is upgradeable to the Stage 2. You just trade-in the module, and make a few wire modifications.
Originally Posted by DieselNY
50hp for $500 is just delicious. Gonna have to get that at some point.
2012 535xi M-Sport, Carbon Black, Cinnamon-Alum Hex, Exec Pack, Tech Pack, HUD, Damper Control, BMW Apps, Heated Rear Seats