Just having a thought at some point will be upgrading brakes will a 312mm front setup and the rear possibly wrong but got 254mm in my head are they good enough or are getting some brembos be better I've heard of them so must be good just not sure all new to this people's thoughts be appreciated

312mm up front and 256mm rears will be plenty good on a Fabia, get some decent pads in there too stopping power will be good.   These sizes were standard on much heavier cars, my V6 4motion Golf had them as standard.

 

 I am not sure about fitment on the Fabia but sure someone will know how easy it is or not.