Once again, depending on driving conditions, service intervals may vary. We recommend you make a visual inspection as often as you would normally service your vehicle. If you are an off-road racer, we would recommend viewing the Pre-Filter at least after every race. If you can see a significant amount of dirt, you should clean the Pre-Filter. If you are an automotive enthusiasts and the only driving you experience is the street, we recommend checking the Pre-Filter every 3,000-5,000 miles. Although your Pre-filter may not require a thorough cleaning, you may want to shake off any excess dirt to maintain your optimum horsepower and fuel efficiency and then simply reinstall.

  • Depending on driving conditions the Pre-Filter should be inspected at least after every race
  • Street use every 3,000-5,000 miles
  • After inspection and the filter looks a little dirty –simply remove, shake off and reinstall

After inspection and the filter appears to be loaded with debris –remove and wash with Outerwears Pre-Filter Cleaner allow to dry and reinstall