Arlen Ness Big Sucker Stage I Air Cleaner Kit – Natural Finish
Premium Performance Air Cleaner with Hidden Breather Technology
Experience the perfect blend of performance and precision engineering with the Arlen Ness Big Sucker Stage I Air Cleaner Kit. Designed for Twin Cam Delphi EFI and CV Carb models (2001–2017), this system delivers superior airflow and power gains while maintaining a clean, factory-style appearance.
Featuring a one-piece aluminum backing plate with integrated hidden breather technology, this air cleaner eliminates the need for external hoses and provides a virtually closed-loop system for efficient engine breathing.
Each pre-oiled, washable filter is made from four layers of surgical-grade cotton, providing maximum airflow and filtration for increased horsepower and torque.
Key Features
Hidden Breather System Each breather is O-ringed at the heads and exits directly into the mouth of the injector or carburetor — eliminating external hoses for a cleaner look and better performance.
One-Piece Aluminum Backing Plate Built for durability and precision, providing strength and a perfect fit every time.
Radius Air Inlet Optimizes airflow for increased horsepower and torque by minimizing restriction.
Reusable, Washable Filter Element Pre-oiled and made from four layers of surgical-grade cotton for maximum filtration and performance.
Compatible with Arlen Ness® Stage I Round Covers Only Designed for riders who want a clean, custom appearance that retains OEM compatibility.
All Hardware Included Comes complete with mounting hardware and detailed installation instructions for a simple, bolt-on setup.
Made in the USA Handcrafted with precision using the highest-quality materials for lasting performance.
Specifications
Attribute
Details
Product Name
Air Cleaner
Model
Big Sucker
Design
Stage I
Air Cleaner Shape
Round
Color/Finish
Natural
Base Color
Silver
Filter Media Material
Surgical-Grade Cotton
Material
Aluminum
Features
Pre-Oiled / Compatible with OEM Air Cleaner Cover
Units
Kit
Riding Style
Street
Weight
2.54 lbs
Height
5.55 in
Length
10.03 in
Width
9.56 in
Fitment
Fits Harley-Davidson® Models (1999–2017):
Touring: Road Glide, Street Glide, Electra Glide, Road King (1999–2007)
Note: Accepts Arlen Ness® Stage I round covers only. Not for use with aftermarket Stage II covers. Emissions-related part. Not legal for sale or use in California on any pollution-controlled motor vehicle.
Performance Benefits
Increases horsepower and torque with enhanced airflow.
Improves engine breathing efficiency through hidden breather design.
Provides clean, unobstructed airflow with a radius inlet.
Washable and reusable for long-term value and easy maintenance.
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