Since I am still unfamiliar with turbo cars. My question is on N/A engines you get pretty good results by bolting on a larger throtle body both throtle response and hp gains. So I haven't read on turbo cars as this being a modifycation being done on evo's. Is it because either until you are making monster hp it is not necisary to upgrade, or is it because it is forced induction that it does not help? This has me wondering.. thanks....

 

stock throttle body is a decent size already...upgrading tb wont do much for you until you do some serious upgrades..other stock parts you should worry about b4 upgrading TB...plenty of airflow for stock unit.