



CT Tuning ECU Flash Mercedes E500 | E550 5.5L V8 NA W212 388HP
$1,300.00

CT Tuning ECU Flash Mercedes E500 | E550 5.5L V8 NA W212 388HP
$1,300.00
- Description
- Additional information
Description
Unlock the true performance of your Mercedes E500 | E550 5.5L V8 NA W212 388HP with a specialized CT Tuning ECU Flash. Our custom calibration optimizes the entire power curve, providing instantaneous throttle response and a relentless pull through the mid-to-top end RPM range. Transform your driving dynamics by eliminating factory sluggishness with a tune engineered for peak performance and drivability.
Crank Horsepower Ratings:
- Stock Power: 388hp | 391ft/lbs
- Tuned Power: 428hp | 442ft/lbs
ECU Flash Options:
- Vmax Off – Adjust the factory maximum speed limiter.
- Race Exhaust – Optimized for vehicles with full race exhaust systems.
- Pops & Bangs – Adds an aggressive exhaust burble on deceleration (Requires full race exhaust system).
- Cold Start Off – Deactivates the cold start cycle.
Why Choose CT Tuning:
- Elite global customer support and expertise.
- Software tested and proven safe for various environments.
- Reversible back to stock settings at any time.
- Compatible with basic bolt-on modifications without requiring a retune.
- Automatic adjustment for higher octane fuel.
- Safe, reliable results and improved efficiency.
How to Flash Your ECU:
- OBDII tool – Requires a Windows PC for setup. Allows switching between stock and tuned files.
- In-Person Service – Schedule an appointment at our Arizona tuning center for installation.
ECU Reference:
- ECU/TCU Reference: Bosch ME9.7.
Vehicle Fitment:
- Mercedes-Benz E500 | E550 5.5L V8 NA W212 (388HP)
Product Notes:
- Power ratings are converted from PS/NM and may vary slightly from advertised figures.
- Tuning must be used within 6 months of purchase.
- Support is available for 30 days after file delivery.
- Future modifications if supported or OEM software updates require a $350 file service fee.
- No refunds once software is issued or locked to a vehicle.
- Emissions readiness is not forced; original files are provided for return to stock.
Additional information
| Weight | 5 lbs |
|---|---|
| Dimensions | 13.25 × 11.5 × 2.38 in |
| Make | Mercedes-Benz |
| Model | E550 |
| Product Year | 2009, 2010, 2011 |
CT Tuning software is purchased with the intention of using these products for Racing Competition Only. As the authorized purchasing party, you understand that some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. As the buyer, you take responsibility to ensure that any modifications or upgrades that have been done to your vehicle conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. To make a purchase, you will be required to sign a waiver acknowledging that these products are intended for Racing Competition Only and not meant to be used on a road car.

