Arlen Ness Stage I Big Sucker Air Cleaner Kit

The Arlen Ness Stage I Big Sucker Air Cleaner Kit is a high-flow performance air intake (cold air intake) for Harley-Davidson motorcycles. It replaces the restrictive factory air cleaner with a larger, free-breathing design. The result is better throttle response and more horsepower and torque. Arlen Ness designed the Big Sucker as a bolt-on upgrade that also gives the engine a clean, aggressive look.

Key Features:

• Hidden breather technology: The patented breather passages are built into the backing plate. This removes the need for external banjo fittings, hoses and T-fittings. The passages exit at the mouth of the carburetor or throttle body, which makes a virtually closed-loop system.
• One-piece aluminum backing plate: The plate is durable and shaped to guide air smoothly into the engine.
• High-flow filter: The Stage I kit includes a washable, reusable performance filter. Depending on the application, the filter is either synthetic or pre-oiled surgical-grade cotton. Its surface area is much larger than the factory element.
• Cover flexibility: Stage I kits generally work with the OEM outer cover or with custom Arlen Ness decorative covers, which are sold separately.
• Easy maintenance: Clean and reuse the filter instead of replacing it. Recharge kits for oiled filters are available separately.

Arlen Ness has built custom and performance Harley-Davidson parts for decades. The Big Sucker line is one of the most popular aftermarket air cleaner families for riders who want more airflow and a tidy, finished intake.