This is the all-new KTuner Revision 1 End-User board tuning system for use with K series engines. It allows engine tuning of K series engines by any end-user. The KTuner End-User board system consists of a circuit board that will need to be installed onto your ECU along with software for use with this board. The system is tunable via laptop with a simple USB cable connection. This will allow you to reprogram your ECU for performance gains and to get the most from your engine modifications.