PDI Big Boss™ Intake Manifolds
FOURTH OF JULY SALE!
Get $100 Off Intake Manifolds with Promo Code INTAKE100
PDI Big Boss™ Intake Manifolds are one of the simplest and easiest upgrades for your ISX or X15 Cummins Engine. Improved airflow brings you increased performance and improved fuel economy! Requires no modifications to existing engine components to install in a small amount of time. Made in the USA.