A big throttle body set that can be replaced from a normal throttle body to a non-processed large diameter throttle body.
If you use the Kitaka scarf, super power cleaner, big throttle, high cam, etc., you can use it without the i-map (763-1429100). Combinations such as "Kitaka Muffler + Big Throttle" and "Super Power Cleaner + Big Throttle" will reduce the air fuel ratio (A/F value) so it is necessary to install i-map (763-1429100) in terms of engine protection