AccessPORT is so much MORE than just a REFLASH DEVICE. It allows you to monitor your Fuel Economy (average and real time), perform performance tests in order to estimate your 0-60mph and 1/4 mile time, read and decipher ECU trouble codes (CELs), and monitor live data via the OEM vehicle sensors which eliminates the need for costly aftermarket gauges. With the added ability to adjust timing and idle, the AccessPORT is truly more than just a programmer, it is the ultimate all-in-one solution for the 350Z enthusiast.