This is the air filter foam from Ultimate Racing, specially designed for the Mugen MBX8R filter. The combination of this filter foam with Ultimate Racing filter oil ensures maximum airflow while providing excellent filtration and protection for your engine. Available in economical packs of 6 and 12 units, un-oiled and packaged in two airtight plastic bags to keep them in perfect condition and ready to use when you need them. Filter oil not included.








































