Simplest mods for increasing boost are a Fuel Cut Defencer and Rising Rate Fuel Pressure Regulator, which should be run together otherwise you'll run lean. Replacing injectors and fuel pump aren't necessarily needed if your running slightly over stock boost, but if you can afford to you might as well! Think, chances are that fuel pump/injectors have been on the car since it was made! So worth changing anyway... Everyone seems to go forged with a TD04 setup, which sees over 200hp so I'd reccomend forging if you plan on breaking the 200hp barrier just for peace of mind really... I'm miles away, so no luck! lol