BMW 2.5i Tuning
Supported in 5 BMW models, 1988+.
BMW
13 supported 2.5i applications
Models With the BMW 2.5i
All Supported BMW 2.5i Tunes
| Model | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| 5-serie | 2003+ | E60 | 192 hp | ECU Siemens MSV70 | AutoTuner |
| 5-serie | 2003+ | E60 | 186 hp | ECU Siemens MS43 | AutoTuner |
| 5-serie | 2003+ | E60 | 192 hp | ECU Siemens MS45 | AutoTuner |
| 5-serie | 2003+ | E60 | 186 hp | ECU Siemens MS45 | AutoTuner |
| X3 | 2003+ | E83 | 192 hp | ECU Siemens MSV70 | AutoTuner |
| X3 | 2003+ | E83 | 186 hp | ECU Siemens MS43 | AutoTuner |
| X3 | 2003+ | E83 | 192 hp | ECU Siemens MS45 | AutoTuner |
| X3 | 2003+ | E83 | 186 hp | ECU Siemens MS45 | AutoTuner |
| Z1 | 1988+ | 170 hp | ECU Siemens MS43 | AutoTuner | |
| Z3 | 1995+ | E36 | 186 hp | ECU Siemens MS43 | AutoTuner |
| Z3 | 1995+ | E36 | 186 hp | ECU Siemens MS45 | AutoTuner |
| Z4 | 2002+ | E85-E86 | 192 hp | ECU Siemens MSV70 | AutoTuner |
| Z4 | 2002+ | E85-E86 | 192 hp | ECU Siemens MS45 | AutoTuner |
About BMW 2.5i tuning
We tune the BMW 2.5i in 13 applications across the 5-serie, X3, Z1, Z3, Z4, from 1988+, in gasoline form, with stock outputs of 170-192 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: Siemens MS43, Siemens MS45, Siemens MSV70.
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.