i see a lot of gear swaps telling how to be more zip by going up in the rear teeth. Im considering going down a few teeth i leave in the DC area and we get a lot of top end rides with my buddies and i pretty much leave everything except that damm 14. we trade top end leads a lot. I know if i go down in the rear he may leave me off the line but i want him in his mirrors cause im comming. I have a full tye force for now a air box mod and PC3 is next i guess i need a tre also. Im still new to the Busa's so ANY help i can get would be cool.