PDI Big Boss Stage 2 Upgrade for Cummins X15 & ISB | 7157728 | 2010-2022 Cummins X15 & ISB

PDI Big Boss Performance Packages are put together with performance, efficiency, and savings in mind. The Stage 2 Performance Kit combines the popular Big Boss tuner with both our high performing intake and manifolds deliver the best mileage and pulling power while balancing air flow to and from the engine. As direct replacement products they are simple to install and utilize all factory hardware. Save now by ordering in a single kit instead of individually!

Kit Includes:

• Big Boss Performance Tuner with Mount
• Big Boss Performance Intake Manifold
• Big Boss Ceramic Coated Exhaust Manifold
• Exhaust Manifold Install Kit
• Stainless Spacer and Bolt Kit
• 1 Year Unlimited Mile Warranty