Looking to purchase a new 5000 or 6000 psi Air tube gauge for my Challenger. I believe it’s a 28 mm gauge. The stock one is off by 300 to 400 psi. I ink marked a line at 3000 psi for reference while hooked to my fill station using 4” wika gauges. But I want to buy a better gauge that I can read. I like the looks of Talon Tunes gauge. But wasn’t sure of the thread and pitch size. I measured the threads being just shy of 8mm across. They look to be a straight thread and not tapered. The gauge also uses a white, flat seal at the bottom of the end cap. It was mushed and somewhat sealing the gauge hole. I replaced it with a new seal. Any info would be appreciated. Thanks Darrell