Has anybody fitted JDM clocks into a UK car? Whats involved?

I'm led to believe that they just plug in but do they read as KM/H or MPH when in the UK car?

Any help appreciated?

Regards

Conrad

Conrad.....it will depend on the year of car you have and the year of car that the clocks came from......what have you got ?
If they are JDM, they will read in KPH, unless you get a speedo converter installed.

Thanks for the reply, JDM STI clocks are 03 I believe and are in KMH and my UK WRX is an 03.