I'm using a GTech Pro RR. It can lock onto a max of 12 GPS satellites for very accurate readings. Better than devices using accellerometers or one gps satellite. You can still use a mobile app for monitoring engine parameters.
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"America.... still builds rockets!"
Vette: 355 cid, 400 rwhp
'13 CTS-V Coupe: 6.2L LSA, 556HP
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