Harry's Lap Timer Pro

Originally Posted by Zxces50

I bought two accesories to go with Harry's IPhone App
1.emprum UltiMate GPS 5kz- for improved positioning accuracy at speed ~$90
2. PLX Devices OBDII Wi-Fi-~$150 plugs into OBDII port- exports tons of data to IPhone- speed, throttle, MAF, RPM.....you can print out an enitre spreadsheet of data
Great track feedback. Had been looking at other more expensive stuff but i always wanted to spend that type of cash on track day first- for the handful of times I go this is a great low cost option that is feature rich. All HANDS FREE- set in paddock and it automatically starts video when you cross start stop at speed