I just bought this device and it worked. everything easy to follow. what else can i say, it does what it's supposed to do.
From San Diego, CA
Reviewer:
From A Customer
Own this product - Yes
Vehicle: 2003 CHEVY/GMC TRUCK Suburban/Yukon XL
After changing my rearend gears, I found that my shift points were off, the engine seemed detuned and I had ABS problems (ABS, Brake and T/C lights coming on). I tried the Superchips programmer and the Hypertech programmer with no success. The Hypertech speedometer cal correction device only solved the speedometer problem. I just installed the Jet Accu Speed and all of my troubles went away. My vehicle is a joy to drive. Jet, got it right!
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