I'm about to acquire an MSLabs MS3 Basic for the NA6 Miata, and I was wondering if I can use a serial to bluetooth adapter to wirelessly talk to the ECU. Would it work right away, or would I need to do some modifications to make it work, if it's even possible to add bluetooth?

Thanks in advance everyone

 

Yes

Be aware you can only use either Serialport(via BT Adapter) OR USB at the same time. So depending on the configuration or type of your bluetooth adapter it possibly has to be disabled/turned off for the USB to work.

Would it work right away ?
Again, depends on the specific BT Adapter and how it's configured. You need 115k baud rate, Hardware Flow Control OFF, one stop bit, no parity bit.