Hi, I just got a tuner box for my Porsche and a buddy with a Mini got real interested in the gains I'm getting vs the price. I know BMWs get similar improvements from similar systems (e.g. the JB4 from Burger Tuning), but all I can seem to find for him is ECU flashes though. Are there tuner boxes like this for the Minis that I'm just not finding?

Thanks,
-dave