So far running a 75hp tune and tcm tune, past 3+ years, no issues to date. Bump in mpg and my DD, so doesn't get beat on or the likes. Did it for longevity and mpg gain (slight 1 to 2, but still a gain without choking the intake with exhaust additive). Running 295 Falken AT3W on 18" wheels, mild offset so slightly taller and wider than stock.

Sounds like you have a delete in your future. How did the dash read out compared to the spread sheet data? Some people spend more than $400 a year at Starbucks.

I had asked in the other video but had not been commented on, so when you went to your larger than stock tire size was there a compensation made with the odometer reading for the lack of miles shown per actual distance travelled on the larger tires vs the stock tires with stock computer distance settings from the factory. Depending on the amount of tire diameter difference that can add up to "part" of the drop in fuel mileage calculation. However its a fact that larger heavier more aggressive tires have more rolling resistance as well as raising the vehicle which causes both more air to flow under the truck as well as over it upping the air drag and is always a penalty for fuel mileage.

weight savings ftw!

Powerstroke is apparently not as susceptible to tuning as the inline Cummins. Some people say tuning can kill the Powerstroke in the medium to long term. If this is true and if you plan to delete, then you should be careful with the tuning.