Arlen Ness 600-251 Stage Method Air Cleaner Kit - 2 Chrome

The Arlen Ness 600-251 Stage 2 Method™ Air Cleaner Kit delivers a bold chrome finish alongside genuine performance gains for street motorcycle riders. Designed around Arlen Ness's proven Stage 2 platform, this oval-shaped air cleaner features an open-face filter design engineered to maximize airflow into your engine.

At the heart of this kit is a performance pre-oiled cotton air filter with a high-flow pleated top and pleated perimeter construction, drawing air from all directions for increased horsepower and throttle response. A polycarbonate window allows visual confirmation of filter condition without disassembly. The filter is fully washable and reusable, making long-term maintenance simple and cost-effective.

The backing plate features a radius design that is specifically engineered to improve horsepower and torque through unobstructed, straight-line airflow. The low-profile design helps preserve ample legroom, keeping the look clean without intruding on rider comfort.

Key Features:

• Oval shape with open-face filter design for maximum airflow
• Pre-oiled cotton filter with high-flow pleated top and pleated perimeter
• Polycarbonate window for easy filter inspection
• Washable and reusable air filter for long-term value
• Radius design backing plate optimized for horsepower and torque
• Low-profile design for improved legroom clearance
• Chrome finish for a classic, polished custom look
• Stage 2 design for enhanced performance over stock

Kit Includes:

• One backing plate assembly
• One pre-oiled air filter
• One chrome outer cover assembly
• All necessary mounting hardware

Arlen Ness has been crafting industry-leading performance and styling parts for motorcycles since 1970, and the Stage 2 Method™ Air Cleaner continues that tradition of California craftsmanship.