BMW CS Performance Flash – M2/M3/M4 G8x

Unlock the true performance potential of your BMW M3 or M4 with the CS Engine Tune DME Flash from BMW Customz. This upgrade installs the official OEM CS calibration onto your vehicle’s DME, transforming the driving experience with increased power, sharper response, and enhanced exhaust character — all while retaining factory-level reliability and drivability. ✅ Features & Benefits: Genuine OEM BMW CS software Power increase to 530 HP / 650 Nm Top speed limiter raised to 186 MPH / 300 KMH Sharper throttle response Enhanced exhaust sound & driving dynamics Improved gearbox & torque delivery behaviour Fully compatible with all regions and countries No aftermarket maps or custom tuning files used 🔒 Safe & OEM-Compatible: No ECU unlock required No permanent modifications No dealer tamper flags triggered OEM-style operation and reliability Compatible with future BMW software programming We flash your G80 / G81 / G82 / G83 DME to the genuine CS calibration, delivering the authentic BMW CS driving experience with smooth daily usability and factory integration. 🔧 Compatibility: 2021 – 2027 BMW G80 M3 2021 – 2027 BMW G81 M3 Touring 2021 – 2027 BMW G82 M4 Coupe 2021 – 2027 BMW G83 M4 Convertible Transmission: Automatic (AT) 📌 Supported on all software versions, including: 11/2025.30 11/2025.40 The flash can be carried out regardless of your current vehicle software version.