CT Tuning ECU Flash Mercedes CLS450 367hp C257 2018-2020
$1,500.00
- Description
- Additional information
Description
Experience a complete performance transformation for your Mercedes CLS450 367hp C257 2018-2020 with a professional CT Tuning ECU flash. This custom software recalibration optimizes key engine parameters to deliver substantial power gains and a more engaging driving experience through sharpened throttle response.
Crank Horsepower Ratings:
- Stock Power: 367hp | 384ft/lbs
- Tuned Power: 410hp | 443ft/lbs
ECU Flash Options:
- Vmax Off – Removes or adjusts the factory top speed limiter.
- Race Exhaust – Tuning optimized for vehicles with full race exhaust systems.
- Pops & Bangs – Adds aggressive exhaust burbles; Requires full race exhaust system.
- Cold Start Off – Disables the high-idle cold start cycle.
Why Choose CT Tuning:
- Reliable, world-class tuning files used globally.
- Significant improvements in throttle response and overall drivability.
- Retains compatibility with basic bolt-on performance parts.
- Fully reversible to factory stock settings.
- ECU automatically adapts to higher octane fuel for peak performance.
How to Flash Your ECU:
This process requires a bench flash. Remove the ECU and ship it to our facility. We will back up your software, apply the tune, and return the unit via your chosen shipping method.
ECU Reference:
- Typically identifies as Bosch MED17.7.3.1 or Bosch MG1CP002.
Vehicle Fitment:
- Mercedes CLS450 367hp C257 (2018-2020)
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 | CLS450 |
| Product Year | 2019, 2020 |
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.