Bullsh!t. The only 2 reasons I bought a tuner initially were for trouble code reading and to remove the godawful 105 mph governer (after I upgraded the tires of course) that made me lose to a Silverado SS.
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Sarcasm - it beats killing people...

2003 Ram 1500 QC Hemi Lonestar Edition
2004 Jeep Liberty 3.7 4x4
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