chili

ok i got me a newly used v8 4 door nissan titan (store demo with 5k miles) and i want to trick it out with some new parts but i am having problems fing some that will fit it

what im looking for right now is some flowmasters or something else that would be good and probably a turbo charger

thanks for any help

also also anyone know how much chrome wheels that are 18" usually cost (got some stock 18" and love them but i want chrome)