Mechanic Required Rsv4 Factory exhaust issues

Dec 2011
West Yorkshire
I've a 2012 RSV4 Factory and have a akrapovic carbon silencer but the link pipe had a CAT so decided to have a new link pipe but this time with 63mm instead of 60mm and I'm opening out the pipe from 54mm to 63mm.

If I do this do I need to get the ECU re-mapped.

So any mechanics out there please