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GMC DiabloSport Performance Chips & Programmers

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Latest Customer Reviews

DiabloSport Trinity T-1000 Programmer Reviews


GMC 6.2 L 8SP be forewarned

Reviewed By sky b (FAIRFIELD, CA) Reviewed for a 2015 GMC Sierra —8/21/2015 8:39 AM

Overall great but doesn't work with the 8 spd trans. 2015 1500 Denali 6.2L. the workaround is to choose manual transmission in programming, but obviously you aren't getting any shift point adjustments or anything. Another note is that I have a lift and 35" tires, but the speed calibration had to be set to 33 to be accurate. "Luckily," we have the radar signs in our neighborhood, so I could take a few tries and get it dialed in, otherwise speedo would have read fast, not slow.

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