NavKal™ is an Electronic Control Module (ECM) programming software for Navistar® & MaxxForce™ Engines. NavKal has two available options – NavKal and NavKal Pro.

The following programming changes are only available to be performed by an authorized International or IC Bus dealer:

• Emission Changes Involving Emissions Label Replacements
• Horsepower Upgrades
• Engine/Exhaust Brake Additions
• Engine Replacement Programming
• Component Serial Number Updates

*** The product key is good for one year. Product keys are not renewed or extended after the license has expired. A new product key must be purchased annually in order to continue using this product.***

*** ALL SALES ARE FINAL (NO RETURNS) ***