I have the Megan racing axle back exhaust and I deleted the 2nd cat and resonator it gives it a nice tone with regular driving and when I put it in sport mode it really opens up

Welcome, and congratulations. That’s a good looking R60 there! I really dig that blue color! There’s one around here with that blue, it looks sharp. Now you can start making it yours and personalize it with tweaks to how it looks! Blacking our the chrome is a favorite of mine. Although the blue one I mentioned is a club member with me, and she had the head and tail light rings as well as some of the black trim on the door bottom and fender skirts paint matched along with the scuttles! It looks fantastic! I’ll give you one word of warning, speaking from personal experience, and as a witness to others.... modding them is addictive! Ha ha. Seriously though, once you start, even if it something small like an intake or exhaust or whatever....it just gets worse! Oh you got a stage 1 ECU tune? Then a few months later you are looking for a catless downpipe and bigger intercooler as you plan to move to stage 2, then a turbo and stage 3.....on and on...lol. Then you may end up like Mariokart and slam a custom 400hp turbo kit in there! Ha ha. (He sells them by the way, and tunes).
You get my drift, lol.
Good luck and I hope you enjoy it as much as I do mine!