MS45 Tunes

MS45-family management appears in later M54 applications, including E46 325i/330i/ZHP and supported Z4, X3, and E60 combinations. MS45.0 and MS45.1 should not be treated as interchangeable; verify the exact installed controller and select the matching product.

For naturally aspirated Poverty Built tunes, select the actual hardware and fuel first, then choose the stage for the behavior you want. A modification does not automatically force a particular stage.

Forced-induction and non-standard combinations require the service path shown for the exact controller and build.

Shop the E46 MS45.1 N/A tune · Review MS45 forced-induction tuning · Read the MS43 vs MS45.1 guide