Unlock the true potential of your G90 M5 or BMW XM.
The S68 engine is BMW’s latest twin-turbo V8 hybrid platform, and it requires a dual ECU unlock to begin tuning. Our MTech Performance FEMTO Unlock & Tuning Package is built specifically for this next-gen platform, supporting all 2023+ G90 M5 and XM models. Whether you're looking for an Off-the-Shelf (OTS) 93 tune or a fully custom ethanol blend map, our package gives you everything needed to tune your BMW safely and effectively.
Proven Tuning Experience: We've been unlocking and tuning BMW ECUs for years. You're in good hands.
Secure FEMTO Unlock: Every S68 requires both ECUs to be unlocked via FEMTO before tuning is possible.
No-Hassle Shipping: We take care of all logistics, including DHL international shipping and customs, so your ECUs get to us and back safely.
FEMTO Flasher Support: Unlike older BMW platforms, the S68 is tuned exclusively through FEMTO Flasher.
1. OTS 93 Octane Tune
Perfect for those looking for a reliable, daily-driver power boost. Includes dual ECU FEMTO unlock and an off-the-shelf 93 octane map via FEMTO Flasher.
2. Custom 93 Octane Tune
This option is ideal if you want something tailored to your driving style or have mild upgrades. Includes dual ECU unlock and a custom 93 tune built specifically for your car.
3. Custom E40 Blend Tune
Running E40? We’ll build you a custom ethanol blend tune that optimizes power while retaining reliability. Includes dual ECU unlock and advanced mapping via FEMTO Flasher.
Full FEMTO unlock for both ECUs (required on all BMW S68 hybrid vehicles)
Compatible with G90 M5 and BMW XM hybrid platforms
Tuned using FEMTO Flasher software
Option of OTS 93, custom 93, or custom E40 blend tunes
Secure shipping and fast turnaround
Real tuning support from MTech Performance
You can ship your ECUs to us, or if you’re local, drop them off at our Fort Lauderdale Florida facility. We’ll handle the rest - unlock, tune, and ship it right back to you.
Order the BMW S68 FEMTO Unlock & Tuning Package today and get real performance backed by real tuning experience.