一樣4.4 Twin Turbo

控制不住

X5 M是6 speed，F10是8 speed

felixho: wow, that's great! x5M is much more powerful than x5~

joseph233: it also cost an arm and a leg

whereas you can simply turn up the bar to increase power for the regular 4.4 TT

with a simple ECU reprogram

(小聲問) how much more....?

joseph233: well, it is the same engine