Car Air Filters

The paper filters were respectable, but the K & N (and, Accell filters) allow air flow almost three times as much when dirty as do clean paper filters of the exact same size.

The K & N passed less particulate matter than the paper filter; as it got dirtier outside, they sprayed on a new coat of oil (without actually cleaning it!) and found that it filtered even better. You can find other helpful advice and information regarding car ball joints and suspension system.