This is a special made RedNeck that was custom made for the HPI Baja 5b. It replaces the stock outer stage filter found on your car. Now you will have 3 stages of protection with the famous RedNeck pre-filter added to the inside single stage your car already has.
Keep dangerous dirt, sand, dust and mud out of your engine. All serious off-readers will agree that there is no better protection than a oiled foam filter. Users must use a foam filter oil for proper results. Users must always test for proper movements of throttle linkage after installation. Some trimming on the outside of the filter may be required.
For R/C: Fits the stock filter on the HPI Baja 5b.