I've got a new Citroen Relay van which is limited to 57 MPH.

I want to increase the limiter to at least 60 MPH, but not sure if Lexia-3, PP or diagbox will work with the Citroen Relay.

Does anyone know which software can talk to the ECU?

P.S the van is being re-classified with DVLA as a motor caravan so the speed limit will be the same as a car (70)....hence, all legal.

Aero