Filter for RaceAir Boost DOT HJC HELMETS The patented design

The patented design

Frequency 148-162MHz

buggies on large tires

Complete in car communications with helmet wiring kits

extremely clear two person intercom with volume controls for driver and co-driver

Filter for RaceAir Boost DOT HJC HELMETS The patented designYou change your oil filter and your intake filter, you also need to change your Race Air Filter! The Race Air Boost replacement filter stops dirt and fine dust while allowing a consistent airflow of clean fresh air. Your race air filter is an often overlooked, essential component to your racing program. Make sure to have clean fresh air throughout your race with our washable replacement filter. To clean your filter, use an air compressor to blow out