One of the coolest, simplest ideas for air filter kits today. Our innovative hi-flow air filter accepts any 5-hole derby cover out today. Choose Ness, HD® or your favorite aftermarket style.
Each kit also includes our patented Big Sucker™ backing plate for incredible performance and clean style, our standard or SS stainless steel jacketed derby filter, custom trim ring and all necessary hardware. Some styles are available as a complete kit that includes a popular Ness designed derby cover