I am selling this item due to a vehicle change. I have only used it for about three months. There were no problems during actual use. I felt a clear power-up, and driving became more enjoyable. RaceChip's sales by the official Japanese importer ended at the end of March 2025, so it is expected that it will become more difficult to obtain in the future. If you are interested, please bid! 【RaceChip GTS Black】Genuine Product The highest-end model in the RaceChip series Compatible models: BMW X5 35d (Diesel) ※Not compatible with gasoline models Compatible years: G05 (2019~) Performance improvement values: Horsepower: 265PS → 317PS Torque: 620Nm → 786Nm Connect (various settings via smartphone Bluetooth) function included Set includes: Main unit, wiring, and instruction manual. ※Box and tie wraps (insulock) are not included. Please prepare your own insulocks when installing. This is an aftermarket part, so installation and accidents after installation are the responsibility of the winning bidder. Please bid only if you agree to no claims and no returns. I am also listing this on other auctions, and I will delete it when it is won. Please feel free to contact me if you have any questions.