UNI Filter air filters are unsurpassed in airflow, dirt stopping and overall performance. And they produce more horsepower and more torque than any other air filter. UNI's revolutionary two stage air filter is the only filter that comes apart for maximum airflow and ultimate cleaning. Enquire to find the filter that is right for your bike. Fits: Honda TRX420FA2 4X4 DCT FOURTRAX RANCHER 2017-2020 TRX420FA6 IRS 4WD RANCHER 2020 TRX420FM 4WD RANCHER 2008-2013 TRX420FPA IRS 4WD RANCHER 2009-2014 TRX420FPM 4WD RANCHER 2009-2013