Arlen Ness 600-247 Sidekick All Black Forged Billet Air Cleaner Kit

The Arlen Ness Sidekick Air Cleaner (600-247) is a premium, all-black performance air intake solution crafted from forged billet aluminum. Its signature angled design delivers excellent rider legroom while simultaneously increasing airflow into the engine — a true blend of form and function.

At the heart of this kit is Arlen Ness's patent-pending hidden breather technology. Each breather is O-ringed at the heads, routes through the backing plate, and exits inside the throttle body mouth via proprietary shooter tubes — eliminating external hoses and hardware for a clean, virtually closed-loop system. An integrated oil catch reservoir prevents excess engine oil from saturating the filter, maintaining consistent, unrestricted airflow.

Key Features:

• Forged billet aluminum cover, CNC-machined into an angled profile for maximum legroom clearance
• High-performance air filter constructed from black synthetic material wrapped in stainless steel mesh — washable and water-resistant
• Integrated polycarbonate top coated for long-term durability, allowing a clear view of the intake system
• Patent-pending hidden breather system with O-ringed heads and proprietary shooter tubes
• Integrated oil catch/reservoir eliminates oil blow-by issues associated with M8 engines
• All-black finish for a clean, blacked-out aesthetic
• Also known by manufacturer part number 1010-3247

The Arlen Ness Sidekick 600-247 is a direct upgrade over stock air cleaners, delivering improved breathing, a stealthy all-black look, and innovative engineering that addresses common engine oil blow-by concerns.