PDI BIG BOSS ECMs offer tuning not available anywhere else in the marketplace. If you have a 2011 Cummins and you are looking for the highest horsepower and efficiency gains in the industry, then let us help you. Our Big Boss custom-tuned ECMs are LSB, ISC, ISL, ISM and ISX compatible. PDI offers tuning in different ranges and stages of horsepower to meet your needs. Why settle for the limits of factory programming? Call us today so we can unlock the capabilities of your electronic diesel engine, and you can  experience the power and efficiency that an engine should have.