#truetune is another option but can’t recall if I stumbled across it on here or not so link below.
https://satuning.co.uk/truetune/
Annoyingly the F40 doesn’t appear on their model selector but having been in touch with them they map to 360bhp / 540NMs which is similar to TDI but SA Tuning is flashing the ECU via OBD rather than piggyback. They say the flash counter is reset though when returned to stock so can’t be detected by dealer.... 🤔
Quoted £399 but you only get the one map rather than a choice of a few to play with. More can be purchased for those wanted to go to different stages.
Something else to throw into the mix! Will be glad to go back to work to stop looking into all this!