Increase power and torque for your engine with Spectre Performance HPR air filters. The filter material allows air to flow easily to the engine, resulting in better combustion and a more efficient use of fuel. Tested using ISO 5011 standards, the Spectre HPR air filters are proven to filter 99.6 percent of contaminant particles.
 
Air Filter Top Measurement:
5.125 in. diameter
Air Filter Bottom Measurement:
7.719 in. diameter