[Dutt1113]

Does anyone know the reason for the huge cost difference in the tunes for 2020 vs 2021 M850? The tunes for builds up to 6/2020 can be had for $1000 or below. I keep reading that the builds for 6/2020+/2021 and up are not possible, yet I've seen some tuners like Eurocharged and DME Tuning show tunes available for 2021+, but they are $1999 and $3799 respectively. Both 2020 and 2021 tunes show around the same power of about 670hp, but the cost difference is huge. Is it a special process vs 2020's to flash the ECUs or is it just the demand vs low supply of tuners that have figured it out for the 2021 ECUs?