The K&N Precharger 22-8033PK is a black, round tapered pre-filter wrap made from polyester. They are made from durable polyester material containing uniform micron openings. It slips over a cone-style intake filter so grit and dust are caught on the outside before they reach the element. The manufacturer says the wrap extends the service interval of your filter when used in very dusty conditions. Search terms this part matches include 6x6 tapered cone filter pre-filter wrap, reusable K&N filter wrap, and dusty track day cold air intake pre-filter.
The main case for this wrap over a bare filter is that you can clean the outer layer without disturbing the element itself. The PreCharger will stop small dirt particles, yet add little restriction to the airflow of the filter. Owners on user forums say their wraps have held up for years. One owner who runs a wrap on a dusty truck reported that it still going strong, it hasnt gotten brittle or anything like that. Compared with a cheaper bare filter on a dusty road, the wrap is inexpensive insurance for a filter that would otherwise need frequent cleaning.
Yes. The manufacturer states the PreCharger is designed to be run dry and can be cleaned with K&N Filter Cleaner.
The manufacturer lists the 22-8033PK as a universal part sized by dimension, with a 6-inch base, 4.625-inch top, and 6-inch height. The manufacturer also says PreCharger wraps are custom made for each application, so compare these dimensions against your filter before ordering.
Owners on user forums distinguish K&N's DryCharger wraps, which are meant to keep out both water and dust, from the PreCharger line. The 22-8033PK is the PreCharger, which the manufacturer positions for very dusty conditions.
The manufacturer did not provide an install sheet for this specific wrap in my research, so confirm fit before you start. Remove the air filter from its housing, slide the wrap over the filter with the closed top at the filter's tip, and check that it seats evenly without bunching. Then reinstall the filter and make sure the wrap does not interfere with the mass airflow sensor or intake clamps. Clean the wrap with K&N Filter Cleaner rather than solvents, and let it air dry before reuse.
