If your worried about colour matching this would be me thoughts,

Dying will always look different. It will be shiny and fresher looking the other parts of the seat if your only getting a bolster done. If it a full seat that is been done you will only notice it is a lot cleaner looking then the whole interior.

I would cut a piece of leather from a part of the seat not seen and send it off for colour matching.

Or

Go to Nolan on the Nass Road and get the leather replaced for €150. You could have it dyed and not be happy and still have to replace the leather.

There are Scuff kit and Dynamex out there but if what your asking for they will not give you and that piece of mind that it is the same colour.

Waffle over