Description
Unlock the full potential of your BMW S63-powered vehicle with the RK-Tunes Custom Performance Tune. Developed through extensive Dynojet testing and real-world validation, this calibration is engineered to deliver significant horsepower and torque gains while maintaining drivability and reliability. Whether you're running basic bolt-ons or building a four-digit horsepower setup, RK-Tunes provides a custom tuning solution tailored to your vehicle and modifications.
Compatible with a wide range of S63-equipped BMW platforms, each tune is optimized for your fuel type, hardware configuration, and performance goals. From improved throttle response and boost control to refined ignition and fueling strategies, RK-Tunes maximizes performance across the entire powerband.
Supported Vehicles
- BMW F10 M5
- BMW F06/F12/F13 M6
- BMW F85 X5M
- BMW F86 X6M
- BMW F90 M5
- BMW F91/F92/F93 M8
- BMW F95 X5M
- BMW F96 X6M
Performance Levels
Stage 1 – 640 WHP (+110 WHP)
Recommended Supporting Modifications:
- RK-Tunes Front Mount Intakes
- MHD Super License
- MHD Wireless Flash Adapter
- NGK 97506 Spark Plugs
- RK-Tunes High Output Ignition Coils
- RK-Tunes Custom Tune
Stage 2 – 675 WHP (+145 WHP)
Includes all Stage 1 modifications plus:
- High-Flow Catted Downpipes
Stage 3 – 720 WHP (+190 WHP)
Includes all Stage 2 modifications plus:
- E30 Fuel Blend
Stage 4 – 830 WHP (+300 WHP)
Includes all Stage 3 modifications plus:
- RK-Tunes Dual Ball Bearing Turbos
- Upgraded Charge Air Coolers
Stage 5 – 1000 WHP (+470 WHP)
Includes all Stage 4 modifications plus:
- Upgraded Intake Manifolds
- MOTIV Reflex System
- Full Low-Pressure Fuel Pump System
Key Features
- Custom calibration for S63-powered BMW models
- Significant horsepower and torque gains
- Optimized boost, ignition timing, and fuel mapping
- Improved throttle response and power delivery
- Designed using Dynojet testing and real-world validation
- Supports pump gas, ethanol blends, and advanced fuel systems
- Compatible with stock turbo and upgraded turbo setups
- Tailored to your specific modifications and performance goals
Maintenance & Tuning Recommendations
- Replace NGK 97506 spark plugs every 10,000 miles
- Replace ignition coils every 50,000 miles
- Consider replacing factory direct injectors every 70,000 miles
- High-flow catted downpipes are strongly recommended
- Factory charge pipes can become brittle and fail over time
- Manual transmission vehicles may require a clutch upgrade at higher power levels
- Port injection is recommended for extreme horsepower applications
- RK-Tunes components are recommended but not required
- Methanol injection is not supported in RK-Tunes calibrations
Recommended Spark Plug Gaps
- Up to 550 WHP: 0.030"
- 551–700 WHP: 0.022"
- 701–850 WHP: 0.022"
- 851–1000 WHP: 0.018"
- 1000+ WHP: 0.016"
