CTZ Flasher Remote Tuning Service (2010–2022 Mercedes-Benz Vehicles)

Unlock the true performance of your Mercedes-Benz with our CTZ Flasher Remote Tuning Service. From C-Class, E-Class, S-Class, AMG models, GLE, GLS, and more — we make tuning simple, powerful, and convenient.

No unnecessary downtime — we ship you our CTZ Flasher and guide you through the process remotely.

⚠️ Important Note: For certain Mercedes models that cannot be tuned via OBD, we’ll switch you to our Ship-In Method. This means you’ll send in your ECU for bench unlock, and we’ll ship it back ready for tuning.

How it works:

✅ Place your order online (required before scheduling an appointment)
✅ We ship you our CTZ Flasher device or set you up with a local dealer
✅ You’ll need a laptop for remote tuning (Windows recommended)
✅ Once you receive your flasher, we book your tune appointment
✅ Our team remotely logs in and completes your custom tune

(If your vehicle requires bench unlock, we’ll provide shipping instructions for your ECU and return it ready-to-go.)

Features of the CTZ Flasher:

⚡ Store & switch between multiple tunes
⚡ Read & clear diagnostic trouble codes (DTCs)
⚡ Data logging for performance monitoring & adjustments
⚡ Compact, portable, and easy to use

Purchase or Borrow Options:

🔹 Borrow the Flasher → Included with service price (return it with the provided label after tuning)
🔹 Buy the Flasher → Keep it for future tuning, diagnostics, and data logging (+$800 upgrade fee)
(If you borrow the flasher and don’t return it, the purchase fee will be charged.)

Custom Add-Ons Available:

Take your Mercedes-Benz to the next level with options such as:

• Pops & Bangs

• Exhaust Burble Tunes

• Launch Control (where supported)

• Rev Limiter Adjustments

• Speed Limiter Removal

• Fuel Efficiency Tunes

• And more, tailored to your setup

Upgrade your Mercedes-Benz with confidence using the CTZ Flasher Method — and for models requiring a bench unlock, our Ship-In Service ensures you’re always covered.