I have been wanting to turbo my 04 gtp but was interested to know what kind of gains i will see with a turbo kit over the supercharger thats already on it or what some of you guys have to say about it. also wondering what kind of engine parts I would have to get to build the engine up to support it. Agian I am trying to go for most horse power for fewest bucks but I also want it to be dependable and i don't want to cut corners.