Diabolic
Active member
The beauty of the QH is it’s ability to datalog live and make tune changes on the fly with a 6 pos chip. The tunes are stored to a usb powered dongle so you can use any laptop that has a USB port. True the QH battery will eventually die but it isn’t meant to stay in the vehicle. The QH is used to datalog ,make tune changes, then save the tune. If you buy an ostrich, you can then burn that QH tune to a J3 chip that should last as long as the vehicle does.