Pre-filters are designed to deflect the damaging debris, which clogs air filters, compromising peak air-flow and horsepower.

for
Fits most Zenoah and Chung Yang pullstarts. Fits Zenoah G230RC / G260RC engines. Also fits Chung Yang CY23RC / CY26RC / CY27RC / CY29RC / GP290 engines. Fits most large-scale R/C cars, buggies, and trucks - KM, FG, HPI Baja 5b, etc.