He had everything done at house of power plenty of mods which include: - o ring compressor - exaust outlet gasket - oil drain gasket - lockplate turbine end - gasket small base - strip and clean turbo - machine turbo housing - coolant tank supply - turbo studs - nut turbocharger - turbo oil supply line - ngk spark plugs - 4inch turbo dump pipe - hi flo 3 1/2 race cat - bolt and gasket kit - siesmens 60lb injectors 14mm high imp - walbro gss341 fuel pump 550hp - intake fuel filter - custom tune that's the mod list he sent me. and all the dyno sheets defiantley say 433hp max at just under 18psi car still has very low ks aprox 75 000, he want around 18k for it..... very hesitant now please help.........