RYANSTAR RACING Universal Clamp-On Air Intake Filter 3/3.5/4 in — Washable, Reusable

RYANSTAR Universal Clamp-On Air Intake Filter is a washable, reusable cone filter that fits 3", 3.5" and 4" inlets to improve air flow and protect your engine from contaminants.

This compact clamp-on filter is built for universal fitment and everyday usability. Supplied with three rubber adapters, it mounts quickly to a range of intake tubes and carburetor stacks. The pleated element increases surface area for smoother airflow while the washable media lets you reuse the filter many times, cutting long-term replacement costs. It’s designed for hobbyists and drivers who want a straightforward upgrade to breathing performance without complex modifications.

How does this clamp-on filter change airflow and response?

The cone-shaped, pleated element increases the intake contact area so more air moves into the engine with less restriction. That can sharpen throttle response and support efficient combustion under normal driving. Results will vary by vehicle, intake design and tuning; this product improves airflow potential rather than guaranteeing power gains.

• High-surface pleated media for increased airflow
• Cone profile reduces intake turbulence compared with flat filters
• Clamp-on installation minimizes air leaks when mounted correctly

What sizes and adapters are included, and which pipes will it fit?

RYANSTAR includes three stepped rubber adapters that allow the filter to clamp onto 3.02", 3.5" and 4.02" diameter inlets. The flexible adapters conform to common aftermarket and factory intake tubes, carburetor stacks and short ram setups. Check the outer diameter of your intake tube before purchase to confirm fit.

• Adapters sized for 3.02", 3.5" and 4.02" openings
• Stainless spring clamp for a secure mechanical seal
• Works on metal and silicone intake pipes with matching diameters

How do you maintain and clean the washable filter element?

The media is designed for repeated cleaning rather than single-use disposal. Under ordinary driving conditions, plan to inspect and service the filter every 5,000–10,000 km; dusty or off-road environments require more frequent attention. Cleaning restores airflow and maintains filtration performance.

• Rinse with water and use a mild detergent or filter cleaner
• Allow to dry fully before re-oiling if the element uses oil-based media
• Inspect for tears or damaged pleats; replace if the element is compromised

Is this filter safe for my engine and does it protect against contaminants?

The filter traps dirt and larger particulates before they enter the intake tract, helping preserve throttle body and intake-runner cleanliness. It’s not a substitute for OEM-matched filtration systems in highly sensitive engines or for applications requiring specific certifications. Proper installation and routine service are essential to maintain protective performance.

• Pleated media captures dust and debris to reduce intake contamination
• Clamp and adapter provide a snug fit to limit unfiltered bypass air
• Reusable design reduces waste and long-term replacement needs

Who is this for: The RYANSTAR Universal Clamp-On Air Intake Filter is aimed at car and motorcycle enthusiasts, weekend tuners, and DIY mechanics who want a simple, affordable way to improve intake airflow and protect the engine from debris. It’s suitable for vehicles with compatible pipe diameters and for users willing to perform periodic cleaning and basic installation.