GTS & CS Performance Flash Package for M2, M3, M4

Unlock the full potential of your BMW with GTS & CS software upgrades originally developed for the M3/M4 GTS and CS models. This package delivers enhanced driving dynamics, sharper throttle response, and track-ready performance — now available for your M2, M3, or M4.

Included Performance Upgrades:

M4 CS/GTS DCT Transmission Flash

• Sharper gear shifts in Sport & Sport+ modes
• Reduced “kangarooing” in low-speed changes
• Enhanced shift feel and response
• GTS/CS-style exhaust burbles (for Competition Package vehicles)
• 🧭 GTS Steering Calibration
• Heavier, more responsive steering
• Better feedback and control
• OEM GTS power assist tuning

🛞 GTS Traction Control

• More slip allowed before intervention
• Improved MDM (M Dynamic Mode) behavior
• Enhanced drift characteristics for spirited driving

⚙ GTS Active Differential Flash

• Improved launch and traction
• Better cornering response
• More predictable stability in high-performance scenarios

Vehicle Compatibility:

• BMW F80 M3 (2014+)
• BMW F82/F83 M4 (2014+)
• BMW F87 M2 (2016+)
• BMW F87 M2 Competition (2018+)

This upgrade is applied remotely using our secure connection tools. Installation is handled by one of our certified technicians, and the process is completely safe and reversible.

Want the ultimate OEM+ upgrade experience?
BimmerFits delivers GTS performance — without compromise.