Pre-Filters

Block moisture and muck without robbing your high-performance air filter’s power gains with replacement pre-filters. Crafted from a micro porous material, a replacement pre filter stops gunk from clogging your air filter. Don’t worry—a replacement pre filter never restricts airflow.

Injen Hydro Shield
Injen Hydro Shield
$22.95
(166)

Safeguard your high-flow air filter without sacrificing performance. Injen's nearly waterproof Hydro Shield replacement pre filter repels water and other microscopic debris while maintaining smooth airflow. Choose from red, blue and black. Lifetime Warranty.