K&N RU-3570 Universal Clamp-On Round Tapered Cotton Air Filter 3in Flange 6in OD

Vehicle Fitment

• Universal Fit - Designed for performance vehicles, cold air intake systems, racing builds, and any application with a 3.00 in. intake tube requiring a wide-body low-profile clamp-on tapered air filter

Fitment Notes

• This is a universal clamp-on filter - verify your intake tube outside diameter matches the flange inside diameter of 3.00 in. before purchasing
• Rubber flange can be stretched up to 1/16 in. (1.5 mm) to accommodate in-between sizes or angled intake configurations
• Note: this filter has a wide base (6.00 in.) and a shallow taper to 5.125 in. at the top over a compact 5-inch height - verify clearance in your engine bay before purchasing
• Not a direct OEM replacement for a specific vehicle - confirm fitment by measuring your intake tube diameter

Features

• Multi-layer oiled cotton gauze media delivers up to 50% more airflow than standard paper filters
• Wide-body low-profile design maximizes filter surface area within a compact 5-inch height
• Ultra-strong molded pliable rubber flange absorbs vibration and provides a secure, leak-free attachment
• Washable and reusable - requires cleaning only every 75,000 miles under normal conditions
• Pre-oiled and ready to install straight out of the box
• Rubber top end cap for a clean, secure finish
• Made in the USA
• Backed by K&N's 10-Year/Million Mile Limited Warranty

Specifications

• Shape: Round Tapered (Cone)
• Flange Inside Diameter: 3.00 in. (76 mm)
• Flange Length: 1.75 in. (44 mm)
• Flange Type: Centered (Single)
• Base Outside Diameter: 6.00 in. (152 mm)
• Top Outside Diameter: 5.125 in. (130 mm)
• Height: 5.00 in. (127 mm)
• Filter Material: Multi-layer oiled cotton gauze
• Filter Color: Red
• Top Style: Rubber End Cap
• Inner Wire: No

Included Components

• 1x K&N RU-3570 Universal Clamp-On Round Tapered Air Filter

Product Description

The K&N RU-3570 is a high-flow universal clamp-on round tapered air filter with a distinctive wide-body, low-profile design - 6 inches in diameter at the base with a very shallow taper to 5.125 inches at the top across a compact 5-inch height. This profile gives it an exceptionally large filter surface area relative to its height, making it an excellent choice for tight vertical clearance situations where a taller cone filter will not fit but maximum airflow is still required. The multi-layer oiled cotton gauze construction flows significantly more air than any paper element, translating to sharper throttle response and measurable horsepower gains.

The centered 3.00 in. rubber flange mounts securely onto matching intake tubes, absorbs vibration, and can be stretched slightly to fit in-between sizes. Washable and reusable, the RU-3570 arrives pre-oiled and only needs cleaning every 75,000 miles under normal conditions. It is backed by K&N's 10-Year/Million Mile Limited Warranty and made in the USA - making it a smart, long-term choice for any performance build requiring a wide-diameter filter in a space-constrained engine bay.