PDI’s BIG BOSS® Performance Tuner combines Power, Efficiency, and Monitoring capabilities in one easy to use handheld unit! Simply plug it into your diagnostics port and follow step by step instructions.

Tuning has always been the simplest and most efficient way to access the fuel economy and horsepower that you deserve! Because every driver’s situation is different, the Performance Tuner offers a user experience personalized to each driving style, application, and other performance upgrades.