Bootmod3 ECU Tune – BMW S63 (M5 / M6 / M8 / X5M / X6M) F83 Stage 1 TrueFlex (full E85)

Stage 1 TrueFlex (full E85)

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Crackles enabled for free revving in park or neutral

Designed for both street builds and serious track setups

Bootmod3 ECU Tune – BMW S63 (M5 / M6 / M8 / X5M / X6M) F83 Stage 1 TrueFlex (full E85)The Bootmod3 (BM3) ECU Tune unleashes the full performance of BMWs twin turbocharged S63 engine, found in the M5, M6, M8, X5M, and X6M. Bootmod3 provides the most complete and user friendly tuning platform available allowing you to flash, log, and monitor your ECU directly through the OBD port using your phone or laptop. Enjoy reliable power gains, race calibrated performance, and factory like drivability. Power Gains (OTS Maps S63 Engine) Stage Fuel