Just been looking at a thread further down RE :- Caterman boxes.
Someone mentioned resetting the ECU !
Why do you need to do this and how do you reset it ? (disconnect the battery ?)
I never did mine when i fitted it and ain't had any problems.
I just drove 'legally' for a few days then tried out the extra oooomph !
My Vec's in for 3 yr service + mot on tuesday, should i remove the box before they have it ?