From the workshop

The cars.
The work. The details.

Development stories and tuning notes from CM Performance.

Engines & ECUs1 November 20264 min read

BMW Engines and ECU Families We’ve Seen So Far

N20/N26 four-cylinders, N54 and N55 six-cylinders, newer B-series cars, S55 M cars and N63/S63 V8 applications. A look at the ECU families we’ve encountered and a few of the features owners have asked us for.

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428i · Development26 October 20261 min read

BMW 428i: DSC off, Sport+ stays

Keeping Sport+ sound, throttle response and aggression with DSC fully off. Our BMW 428i drift development story.

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The cars.The work. The details.

BMW Engines and ECU Families We’ve Seen So Far

BMW 428i: DSC off, Sport+ stays

The cars.
The work. The details.