Im just wanting the next size up from mine really, im not sure about any internal work that may have been done but it has already got 3" decat pipe, adjustable fuel pressure regulator, adjustable boost control valve, air filter, blow off valve, not sure about fuel pump which im going to check soon, im wanting about 320bhp dont wanna put too much stress on the engine lol is there anything else it may need if i get that turbo?