PDI Big Boss Stage 2 Performance Kit for Cummins X15 and ISX CAT a 20% airflow increase over

a 20% airflow increase over a stock manifold

Warranty: 1 Year Unlimited Mileage

Rated for higher temps with reinforced construction our boots will meet the demands of your truck

This design with a stronger billet compressor wheel to help increase fuel efficiency

PDI Big Boss Stage 2 Performance Kit for Cummins X15 and ISX CAT a 20% airflow increase overKit 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 Available for: Cummins ISX15 & X15 Engines Warranty: 1 Year Unlimited Mile Warranty 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