Has anyone successfully altered the performance characteristics of a JCW to match those of a GP2? Specifically I’m thinking of the GP Mode that changes ASC /DSC behavior when the GP Mode button (labeled ASC in a JCW) is pressed.

If you put a GP ECU in a JCW, will it just work or will it fail or throw a bunch of error codes?

Are there aftermarket ECU mods for JCWs that do anything with ASC / DSC, or are they all just about increasing HP?

Thanks!