There are a couple of common issues lol
Heater matrix pipes bursting- roose make stronger ones
Crankcase breather pipe splitting/colapsing- again roose make upgrade
Thermostat housings crack - RSOC member makes aluminium ones
Oil cooler water pipe elbow corrode - nortech performance make upgrade
Chargecooler water pumps stop working - RSOC member recons them
Turbo oil return pipes corrode too - JEK performance make upgrade
Thats about it off the top of my head, dont be put off just things to check and replace in time.
DON'T fit an atmospheric dump valve - won't run right.
DO join the RSOC because the info/help/savings on parts is fantastic!
For a carbon splitter, you can only get them from one person but you need to be an RSOC member
AWESOME car, i love mine i'm sure you'll love yours too when ya get it.
Once your a RSOC member and use the forum you'll find out exactly what to do and where to get it from, 300bhp is easy