got 12k any ideas?

hey i decided to get a manual is 300... black w/ black interior of course. now i have $12k to put into it. i want all out performance basically im gonna make a sleeper. could you guys direct me to some performance sites? first thing that i wanna put in is a turbo. also any suggestions for making the engine more durable and reliable in other words not have the engine blow up on me? thanks