Standard is 230bhp 258lb/ft.
Mods will mainly be subtle in the looks department, such as tinted side repeaters, smaller rear wiper etc.
Power wise, a simple chip will see 280bhp ~310lb.ft which will do for now!
Porsche 996 4 pots will go straight on, so that will definitly be an upgrade for the future, as the standard brakes are the main weak point on them