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Thread: LB7: Spade Jack Tuner??????
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Old 02-16-2014, 12:10 PM   #9 (permalink)
Gear Grinder
Join Date: Feb 2014
Posts: 4

I have the tunes supplied from duramaxtuner.com it goes economy, heavy tow, light tow, sport, and stock trans race. 60hp, 40hp, 80hp, and 100hp for the race tune. someone told me to drive it for awhile and the computer and tranny will self adjust to the tunes, is this true???? and should I just leave it in optimized stock economy tune????
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