Several, and several threads already here about them. Search is your friend. Ktuner and Hondata have ECU reflashes, Racechip also has a piggyback unit.
please post the link where i can purchase a tuner that plugs in to my obd2 port and i can re program the computer. i do not want to send my ecu off or a piggyback chip. i have searched threads and can not find a held hand tuner