For M2 M3 M4 G8x:
 
This software can be applied to any G8X M2/M3/M4 and the software coded into the following ECU’s
 
CSL/CS Engine -
Power increase to 530 HP / 650 Nm
Top speed raised to 186 MPH (300 KMH) – limiter removed
Enhanced throttle response and exhaust sound
No ECU unlock required
No dealer flags or warranty risk
 
CSL/CS Transmission Flash - Responsive gear changes and a refined feel in Sport and Sport+ modes. The update also enhances exhaust burble characteristics, delivering the distinctive acoustic signature of the CS/CSL, ensuring every drive feels track-inspired and performance-focused
 
CSL/CS Electronic Power Steering - Stiffened feel to steering for improved control and handling with more advanced power assist.
 
CSL/CS Traction Control - More slip in MDM before power is cut/reduced and allows improved traction control setting and drift characteristics.

CSL/CS Suspension - Enhanced damping for sharper cornering response and reduced body roll, delivering a more connected and agile driving experience