Prok's high-flow aftermarket air filters feature an internal vortex-shaped cone and rolled intake edge for the highest, most unrestricted airflow possible.
When used with proper carburetor jetting (Jet Kit sold separately), Prok's Air Filters greatly improve low speed idle and acceleration. RE testing has consistently shown a 1-1.5 mph top end increase and a 6 horsepower gain at peak RPMs with a simple rejetting and Prok's exceptional filter upgrade. Sold in pairs.
Note: RE highly recommends Jet Kit and Outerwear's Pre-Filters for best performance (sold separately).