Arlen Ness Red Stage 2 Oval Upgrade Performance Air Filter 4 Harley HD Ventilator

• Stage 2 Oval Performance Air Filter Kits for factory oval HD air cleaners both increase performance & add style to the engine 
• Features a performance filter with a pleated top to take in air from the sides & top of the filter for maximum airflow 
• Filter cover, spacers & clamps are all CNC machined from billet aluminum 
• Performance air filter is made from high-flow black pre-oiled cotton media 
• Increased filter height specially designed to increase airflow without reducing leg room 
• Over 50% more air filter surface area than paper filters found in factory oval air cleaners
• Dyno testing has shown up to a 3hp increase after installing the upgrade filter  on factory displacement M8 engines; up to 5hp gain for 124” big bore M8 engines
• Each filter kit includes a performance filter, billet air cleaner cover, billet spacers & clamps
• Fitment: Oval Screaming Eagle® Ventilator® air cleaners & M8 special / ST models equipped with HD oval Ventilator air cleaner backing plates

M8- 2017-2023 Harley Touring M8 Models & 2018-2023 Harley Softail Models

Manufacturer's Warranty

Almost 50% more air filter surface area than paper filters found in factory oval air cleaners.