Mercedes 5.5i Tuning
Supported in 2 Mercedes models, 2005+.
Mercedes
2 supported 5.5i applications
Models With the Mercedes 5.5i
All Supported Mercedes 5.5i Tunes
| Model | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| E | 2006+ | W211 | 388 hp | ECU Bosch ME9.7 | AutoTuner |
| S | 2005+ | W221 | 388 hp | ECU Bosch ME9.7 | AutoTuner |
About Mercedes 5.5i tuning
We tune the Mercedes 5.5i in 2 applications across the E, S, from 2005+, in gasoline form, with stock outputs of 388 hp. Calibrations are written on AutoTuner for your exact hardware and fuel, then proven on our Dynojet 424xLC2 in Jenison, MI.
This engine runs on: Bosch ME9.7.
Don't See Your Vehicle?
These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.