[repsol motogp]

The problem with velocity stacks that i have run across is that with a hand held tuner you can not change your AFM you need a PC5. When I did the velocity stack upgrade and took it to a tuner he said with a PC5 you can only work with 4 of the 8 injector. It was a older mobile dyno so I'm going to try another tuner because this guy definitely had some problems like he blistered and pretty much ruined my tire.

 

[repsol motogp]

Brentune over sells everything. If BMW updates the software on the motorcycle you have to return to Brentune for an update every time. I myself had problems and I know of others who have had various problems with whatever software they have been provided and not just on BMWs. Just be prepared to open your wallet to get anything out of Brentoons… and yes I spelled that wrong on purpose. Also note that there’s additional fees for the handheld tool used to transfer the software. How this item can be as expensive as an iPad is mind blowing.

As time goes on, people figure it out. Oh.. and so has BMW and the warranty department.

I have a hand held not impressed. when I purchased mine it was in 2014 with hand held and tune it was $1200 used once now it collects dust. if you want to go faster loose ten pounds