2015+ Mustang speed gauge limit

[auto-hentzschel]

Hello
the speedometer in the newest Mustang show maximal 260 km/h. If I raise the PCM speed limiter and also install a Gauge with 300 km/h, the needle stay strong at 260.
Does anyone have a idea how to raise this limit?
thank you for answer.

[stangster]

können wir vielleicht zusammen herausfinden.

[auto-hentzschel]

Gerne!

[stangster]

Ihr erreicht mich über die S550.GURU Website