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so i put gauges on my 04 cummins before i did the programmer...i was shocked at the EGTs with the factory tune...it would fly right on by 1350 when towing...then i got a smarty...what a difference...when in tow mode i cant get it past 1200...ide let my woman take it over the pass fully loaded and not worry about her cooking it...cause the smarty wont let it happen....:awesomework:
