very cool as well!! just to be sure a two step is a line lock right??? me so stupid. and it can be done in the button as well but the original one is plastic so i thought it would wear out too fast. this was to to cover up any suspicious thinking at the MOT.
No, the two-step is the MSD rev-limiter to allow you to bring the rpm up at launch. The button in my car is aluminium, but the original in moulded plastic will work just as well...