I believe GrabberBlue5.0 has a Lund tune.Which one did you buy? Are you happy with it? Also, have you tried Lund racing for their tunes?
I'd go for the new one, if you decide not to go with Lund. That's too dang much for a used tuner IMO.The previous owner of my Shelby recommended using Lund racing for tune. I think being able to sync tunes via Bluetooth on my iPhone or iPad is pretty awesome. Wonder if I should buy new one for $469 or a used one for 400 obo