* Specific Smarty Jr. Tune Loaded: The Smarty Jr. offers multiple tunes, each with varying levels of aggressiveness. The 67ME likely refers to a specific tune within the Smarty Jr. software, but the exact horsepower will vary depending on the selected power level setting within that tune. Some tunes are significantly more powerful than others.
* Truck's Modifications: Other modifications to the truck (exhaust, intake, fuel system upgrades) will drastically affect the final horsepower output. A stock truck with just the tuner will produce less power than one with supporting modifications.
* Fuel Quality: The quality of the diesel fuel used can impact the power and reliability of the engine.
* Altitude and Ambient Conditions: Higher altitudes and hotter temperatures will reduce the power output.
While you might find online claims stating a specific horsepower number for a particular Smarty Jr. tune, it's crucial to understand these are estimates and can vary considerably. It's impossible to give a precise horsepower figure without knowing the specific tune used and the condition and modifications of the truck. You should consult the Smarty Jr. documentation or the tuner's community forums for more specific information on power level estimates for the various tunes available.
