Mercedes Benz W222 S550 Performance ECU Tuning

“There is no such thing as too much power!”.  That being said, OE Tuning’s Stage 1 ECU tuning package for M278 4.7L biturbo gasoline V-8 is just the answer for Mercedes Benz S550 (also known as W222 S500 outside USA).

The Mercedes Benz M278 power-train is a monster after tuning that rivals performance of a stock 63AMG 5.5L bi-turbo. When compared during a side-by-side comparison on the street, the OE Tuning tuned S550 has performance slightly better than a S63 AMG biturbo. Performance gains as seen on the dyno are +110-130wTq & 100-110wHp to the wheels!

 

Baseline vs. ECU Tune

 

Features of the tune include:

–      Increased Performance and Driveability

–      Higher Torque request for TCU

–      Speed limiter removal

–      Improved throttle response

–      Rpm and shifting limits can also be increased

 

Order online here: http://www.oetuning.com/mercedes-benz-s500550-4-6-biturbo-13

 

12 thoughts on “Mercedes Benz W222 S550 Performance ECU Tuning

  1. Hi there I’m interested in the tune…I’m in San Fernando valley …how much would it cost and would it affect my warranty since my car is a lease

  2. The price for tuning is $1195. We can tune your vehicle locally in Huntington Beach while you wait, or the ecu can be removed and sent in for modification. I have emailed the ECU removal instructions for your interest. All ecus are modified and returned the same day as arrival. Purchase also comes with a free re-flash should the dealership program over your tuned settings. Your tune will be saved in our database and is always 100% reversible. MB dealer warranty is unaffected. For lease returns we suggest having the tune removed and flashed back to stock before returning.

  3. Hi def interested in tune. Please respond back so we can get this going. I have a 2016 s550. I’m in nj how much for all this amd what’s turn around

  4. The price for tuning is $1195. We can tune your vehicle locally in Huntington Beach while you wait, or the ECU bust be removed and sent in for modification. All ecus are modified and returned the same day as arrival (provided ECU arrives before 12 noon PST). For fastest turn around please enclose a return shipping label with your ecu when sending in. We also have overnight shipping available for $60.

  5. Interested in a tune for my 2015 S550. DO you guys work with anyone in AZ to do this? If the car is in for service and ref lashed back to stock does the car have to come back out to SoCal to be reflashed? Can I purchase a spare ECU or is it too pricey. THanks, Dave

  6. I have a 2014 s550 RWD m278- what type of rwhp MNwhat would be expected rwhp number s to expect w your packages?

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