Arlen Ness 18-500 Big Sucker Stage I Air Filter Kit

The Arlen Ness 18-500 Big Sucker Stage I Air Filter Kit is a high-performance air intake system engineered to maximize airflow and increase horsepower on Harley-Davidson motorcycles equipped with CV carburetors. This complete air filter assembly features a natural finish backing plate with a high-flow red filter element designed to deliver up to 21 percent more horsepower to your engine.

Key Features:

• One-piece aluminum backing plate with integrated CV carb support bracket for enhanced durability
• Patented hidden breather technology with O-ringed connections at the cylinder heads
• Breather passages exit at the mouth of the carburetor, creating a virtually closed-loop system
• Eliminates the need for banjo fittings, external hoses, and breather hardware
• Radius air inlet design provides maximum performance through unobstructed airflow
• High-performance red filter element with round configuration
• Accepts OEM factory air filter cover or optional Arlen Ness custom covers
• Natural finish backing plate coordinates with other motorcycle accessories

This kit includes all necessary mounting hardware, gaskets, and detailed installation instructions. The Big Sucker Stage I provides exceptional engine breathing while maintaining a clean, professional appearance under your stock or custom air filter cover.