"After having the grimmspeed cold air intake on my 10 STi for about 2k miles my air filter had gotten packed with dirt and small rocks. To the point where it dusted the MAF and caused the vehicle to not run. I should note i am flared and my fender liners are MIA. I cleaned the filter and replaced the maf and installed this prefilter that fits tightly around the air filter. This will keep rocks, dirt, & debris out of the filter and is water resistant for when driving in heavy rain. 10/10 recommend using this prefilter on your AF."
The K&N PreCharger filter wrap is specially designed to extend the service interval of your GrimmSpeed Dry-Con Cone Air Filter when used in very dusty conditions. They are made from durable polyester material containing a uniform weave. The PreCharger will stop small dirt particles with minimal restriction to the airflow of the filter.
Quick Specs:
- Designed Specifically for 6"x6" Tapered Air Filters, Like the GrimmSpeed Dry-Con Cone Filter
- Extends Service Interval of Your GrimmSpeed Filter in Dusty Conditions
- Durable Polyester Material With Stitched Elastic Openings
- Cleanable with K&N Filter Cleaner
Overall rating: 5.0 / 5 from 1 reviews.
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