Weistec’s factory-grade S63TU remap for the BMW F90 M5 delivers real-world gains without guesswork. Stage 1 suits stock cars: up to 705 bhp and 675 lb-ft. Stage 2 adds 20 bhp and 20 lb-ft - but only with a race exhaust fitted.
Stage 1 (05-563-00145-9) and Stage 2 (05-563-00146-0) are distinct, pre-loaded files
OBD flash via Cypher handheld - plug-and-play on 2018-2019 F90 M5s
Includes burble control (Off/Mild/Aggressive), speed limiter removal, catalyst heating off & cold start delete (race use only)
No generic maps - every parameter tuned for the S63TU’s twin-turbo V8 behaviour
