Dinan DINANTRONICS X for the S63TU4 engine with Competition Package. Part D440-0146 fits 2018-2025 BMW M5 Competition/M8 Competition and 2020-2023 X5M Competition/X6M Competition. The Bluetooth-enabled inline module provides seven power levels plus bypass, plug-and-play installation and retained onboard diagnostics. Dinan lists up to 98 HP and 103 lb-ft crank gains. Emission Code 7; not legal for sale or use in California while CARB testing is pending.

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