Opinions wanted for modding

Originally Posted by Joker_J

Already purchase the Gen 3, Transmission Cooler and the GTR Push button.



Next parts I'm thinking about getting is CBE, HFC and Header.



Now some people say I won't need a HFC because it justs makes the ride sound louder.



Would I be ok with just the CBE + Header? or would I also need the HFC so everything runs smoother... Thank you!