stage 1 Paul Johnson (F80Paul) tune for 93 octane. RK intake all else is stock. you can follow my thread here: https://x3.xbimmers.com/forums/showth... Dyno: https://x3.xbimmers.com/forums/attach... best 1/4 run yet: 10.9 #bmw #x3m #x3mcompetition #Dyno #S58