Volant's new technology packs hundreds of staggered flutes into one rugged air filter design. The flutes trap dirt at the surface instead of letting it clog in the pleats like old-time filters. The Volant PowerCore Replacement Filter allows more power-rich air and less engine-killing crud into your motor. And, your Volant PowerCore Air filter requires zero maintenance for the next 100,000 miles! The verdict is in; cotton-gauze is for bandages not air filters. 30 years ago cotton-gauze was the only way to make a performance filter, but that was 30 years ago. So, why do the leading brands still rely on ancient methods? No one knows, but Volant's PowerCore launches the performance air filter into the 21st century. Already have a cold air intake? No problem, the PowerCore fits most popular aftermarket systems. So, you can upgrade your K&N, Airaid or AEM intake to the unsurpassed performance and protection of the Volant PowerCore. Best yet, your PowerCore Filter is backed by Volant's 4-year, 100,000-mile warranty.