Reviewed By Marley S (EL CAMPO, TX) —5/15/2018 12:28 PM
This device works as designed, after 3 weeks of use it consistently disables v4 mode. Keeps lifters from from dropping out and causing damage.
Reviewed By drake l (Saint Paul, MN) Reviewed for a 2001 GMC Yukon —5/13/2018 4:19 PM
I was a little sceptical about buying this tuner because it was fairly inexpensive. After receiving it and trying it out I'm amazed how well it works for my 2001 denali. I tuner the mileage saver and so far I'm getting at least 2.5 miles to the gallon better. Can't wait to try the other functions..... If I were you I'd buy one
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