I don't like the engine power and the car is starting to make weird vibrating noises. I wanted to know if I could do a engine swap for a manual transmission but with more power. How much will this cost? How much will it cost to install. I live in Maryland and I don't know where to go to get upgrades either for an rx8. I have a v6 350z turbo but since this is a new type of car for me (rotary engine) I don't want to do something that will mess it up. Any advice would help a lot.

Thank you.