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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.
M4 CS/GTS DCT Transmission Flash
🛞 GTS Traction Control
⚙ GTS Active Differential Flash
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.
Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
US$40
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