Description Fits: See Additional Fitment Information Keep your performance air filter running strong and clean with our High-Performance Air Filter Pre-Filter. This semi-hydrophobic "filter sock" blocks nasty debris like bugs and grit, making maintenance a breeze and seriously extending your filter's life, all without choking airflow. Part Number: PPFX Features Effectively blocks large debris like bugs, grass, and rocks, seriously extending the life of your expensive air filter. Simplifies routine filter cleaning by keeping the main filter cleaner, longer. Our semi-hydrophobic material causes water to bead and roll right off, keeping your filter drier for consistent performance. Engineered for minimal airflow restriction, so you get maximum filtration efficiency without sacrificing horsepower. Additional Fitment Information Cummins Pusher Cold Air Intake / 40CALx (PPF10) Pusher Compound Turbo System / 50CALx (PPF10) Duramax Pusher Cold Air Intake / 45CAL (PPF9) Compound Turbo Systems: LB7, LLY, LBZ, LMM / 50CALx (PPF10) Compound Turbo Systems: LML / 50CAL (PPF9) Powerstroke Pusher 2011-2016 Intake Systems / 40 CALx (PPF10) Pusher 2017-2019 Intake Systems / 45CAL (PPF9) Pusher Compound Turbo System / 50CAL (PPF8)