The Ultimate .12/.21 on-road air filter system with silencer and foam is designed for RC on-road engines, providing efficient filtration and excellent noise reduction without loss of power or performance. The protector or silencer is EFRA / IFMAR approved (INS202601), making it suitable for competitive racing. Its design optimizes airflow to the carburetor while keeping the engine protected from dust and debris. With a total weight of only 19 g, it is a lightweight and efficient air filter, ideal for competition use. Features the Ultimate logo on the cover, giving a high-quality, professional finish. ⚠️ Filter oil not included. Main Features Complete air filter for RC on-road Compatible with .12 and .21 engines Includes protector and foam element EFRA / IFMAR approved – INS202601 Reduces noise without power loss Optimized airflow Total weight: 19 g Ultimate logo on the cover Package Contents Upper and lower plastic cups Rubber base with foam element Instruction sheet 4 countersunk screws 2.5 x 10 mm
