you definitly will be fine, we put 20K miles on our 05 excursion (mbrp exhaust) & 15Kmiles on our 04 Excursion (mbrp exhaust) on the performance setting with no problems and also without guages but my dads 05 F-350 with 11K miles ate a turbo because it got too hot so the dealer says and it also was set at performance with no guages. I personally would say go for it but just don't drive it like my dad drives his:roflmao:Farmboy162005 said:I have been runniung my truck on tow safe mode untill i got my 5 inch exhaust. What i was wondering is with out gauges would it be fine to run the truck on high performance, just wondering what you al think?
outlaw6oh said::iagree gauges only work if you look at them and I never look, especially if I'm getting on it. I only look when I'm towing something and unless your hammering it when your towing you shouldn't be getting hot in fact my truck runs cooler with my tuner in extreme setting than stock when towing.