To receive a full refund they must be returned within 60 days of receiving the upgraded turbos. If it goes beyond 60 days then it is half credit up to 90 days which would be no credit.

S58 Turbo Upgrade for BMW X3M/X4M will also be the new motor in the upcoming M3/M4 2022

Stage 2+ Turbo

This turbo will require the proper tuning software to be flashed onto the car to function properly. Failure to do so can lead to catastrophic engine failure.