Weistec BMW F90 M5 S63TU ECU Tune Remap Stage 1 & Stage 2 Performance Upgrade | DME Tuning | UK Supply & Fit | Cypher OBD Flash (20182019)

Weistec Power Software for BMW M5 F90 S63TU - Stage 1 and Stage 2

Transform your twin turbo V8 with Weistec’s expertly engineered engine management software. This calibration delivers a serious bump in horsepower and torque with crisp pedal response, seamless drivability and a broader, harder-hitting powerband. If you are searching for BMW M5 F90 tuning UK, S63TU software upgrade, BMW V8 power software, performance map for M5 or UK installation for Weistec, this is the premium solution enthusiasts choose.

We run this software on customer cars and our own demonstrators, and the feedback is consistently outstanding. The car feels stronger everywhere, surges through each gear and remains refined around town. It is the ideal fast-road and track-day performance software for the F90 platform.

Key benefits

• Big gains in power and torque across the rev range for rapid real-world acceleration
• Sharper throttle behaviour with smooth, linear delivery for daily use
• Calibrated fuelling, ignition and boost control tailored to the S63TU
• Vmax derestriction available on suitable vehicles
• Race-only options including burble level control, catalyst heating off and cold start delete
• Works perfectly with standard hardware - additional headroom unlocked with a race exhaust

Quoted performance

Weistec published figures:

• W.1 Stage 1 - stock hardware: 705 hp, 675 torque
• W.2 Stage 2 - race exhaust fitted: 725 hp, 695 torque

Results vary depending on vehicle condition, supporting hardware, fuel quality and environmental factors.

Cypher handheld OBD flashing

For 2018 to 2019 cars, the optional Cypher handheld enables at-home OBD programming. Swap between tuned files or revert to factory in minutes. No ECU removal required. Simply add Cypher to your order.

Track-use options

• Exhaust burble control - Off, Mild or Aggressive
• Catalyst heating disable - for race vehicles with appropriate hardware
• Cold start disable - for off-road use only

Some features are intended strictly for competition or off-road vehicles. Please check local regulations.

Compatibility

BMW M5 F90 Saloon with S63TU engine.

Part numbers

• 05-563-00145-9 - W.1 Stage 1
• 05-563-00146-0 - W.2 Stage 2

Professional fitting and support

For installation, flashing and setup, choose MJ Modifications in Warwickshire. We supply and install Weistec software, provide guidance on Stage 1 vs Stage 2, burble settings and suitable supporting mods for your goals. Email info@mjmodifications.co.uk for a quote or to book.

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