Since both clusters read the speed info off the CAN bus from the ABS module ( which I think are the same ), and it gets it's input from the tone rings at the wheels ( which I think are the same ), there is a good chance it will work fine. The cluster has it's own microprocessor and an EEPROM with data related to the platform.

Besides, I thought the SRT6 went to 200 anyway and the NA to 160.
Guess I'm wrong again.