if you are referring to HFP honda factory performance theres not much if anything "performance" listed. like it is for other models.
however most parts you install can and will only void the warranty for its specific location
Ie an injen exhaust will void your exhaust warranty
in most cases. generic mods will not effect anything
I cut my bumper and run dual exhaust. I doubt my rear bumper is covered anymore but the paint on it is. understand?
if something goes wrong. say an engine failure. and the computer says the last action before said failure was a rev to 9000 rpm which is impossible on stock computer. and you have a chip or reflash that raised your redline they can void warranty.
otherwise if they cant prove it was caused by a mod your clear.