wifiuk- Ultimately very few people actually create these remaps in the first place; MSD are one company in the UK doing it.. 99% of 'remaps' out there are resellers of these special few companies.. So with that knowledge, knowing that there are maybe only a few actual different calibrations available for your car, the question is which reseller/dealer do you choose to get it programmed into your ECU? That's what it boils down to...