There is something for alot of the current members and new members here to learn from.

It is very obvious that Terry's reputation has been falsely blown large by his gang of members on here with biased immature comments.

If you wish to release more bhp from your expensive BMW then Im My Honest Opinion do not fit a tuning box. They fool the ECU which is not a good thing and do not just fit one because they are cheap. If you are doing it once then do it right.

DO Research online about tuning boxes. Avoid some certain BMW forums where biased immature members comment.

Google search other forums. Even other types of cars as tuning boxes all do the one thing of crudely messing with the important ECU signals.

Regards,
Aidan