BenzUnited Parts
Mercedes C300 GLC300 E300 ECU Tune – M274 2.0 Turbo Power Boost
Mercedes C300 GLC300 E300 ECU Tune – M274 2.0 Turbo Power Boost
Custom Tuning — Contact for Quote
This tuning service is custom-tailored to your build. Please contact us with your vehicle's year, model, engine, and mods for pricing.
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Custom ECU Tuning for Mercedes M274 2.0L Turbo
C300 · E300 · GLC300 · SLC300
Up to +55 HP / +75 TQ – Safe, Reliable Power Gains
Maximize the potential of your M274 2.0L Turbo with a precision ECU calibration built for substantial torque gains, sharper throttle response, and improved drivability—while keeping all OEM safety systems intact. Perfect for daily driving or spirited runs.
💨 Want Even More Power & Aggressive Sound?
Pair your tune with high-flow M274 catless downpipes to unlock maximum performance and unleash a deeper exhaust note.
Shop Performance Downpipes✔️ Why Our Tune Stands Out
- Sharper Throttle Response: Instant power when you need it.
- Reduced Turbo Lag: Faster spool and smoother power delivery.
- Fuel Flexibility: Custom maps for multiple octane levels.
- Factory Safeguards Retained: OEM knock and thermal protections remain active.
- Dealer-Safe: Undetectable by dealer-level diagnostic tools.
🔧 Tuning Options
- Handheld Programmer: Flash at home with our MyGenius device (includes 3 custom maps).
- Bench Tune: Send in your ECU; we’ll flash it and return it ready to plug in.
📌 Supported Models (M274 2.0L Turbo)
| Model | Years |
|---|---|
| C300 | 2015–2021 |
| E300 | 2017–2019 |
| SLC300 | 2012–2015 |
| GLC300 | 2017–2020 |
🔓 Unleash True Driving Potential
Order your M274 ECU tuning today for massive gains in performance and driving enjoyment.
Questions? Email us at benzunitedparts@gmail.com
