K&N High-Flow Universal Clamp-On Air Filter – Washable, Lifetime, 4 in Flange (RG-1001BL)

Overview

The K&N High-Flow Universal Clamp-On Air Filter is built to fit a broad range of engines and intake configurations. This washable, lifetime air filter uses a sturdy round tapered design with a 4-inch flange, a 5.5-inch filter height, and a 1.125-inch flange length, making it a versatile upgrade for many factory and aftermarket air boxes. The RG-1001BL model focuses on durable materials and straightforward maintenance, so you can enjoy ongoing filtration without frequent replacements.

How it’s engineered to support airflow

Premium filter media is crafted for high-flow performance, aiming to support improved air delivery to the engine. The four-layer protection system combines cotton gauze with a specialized tack agent to create a dense, yet breathable mesh that traps dust and debris while allowing air to pass through efficiently. A rugged rubber flange helps seal the filter and dampen vibrations, contributing to a steady intake seal in varied driving conditions.

• ENGINEERED POWER: high-flow media is designed to support throttle response and overall engine performance.
• 4 LAYERS OF PROTECTION: multiple layers trap contaminants while maintaining airflow.
• RUGGED CONSTRUCTION: premium materials and modern building methods yield long-lasting durability.
• CLEAN ONCE EVERY 75,000 MILES: typical highway use may extend cleaning intervals under normal conditions.
• EASY INSTALLATION: pre-oiled, drop-in design makes upgrades fast and simple.
• UNIVERSAL FITMENT: designed for use across a variety of applications and intake setups.
• REDUCES WASTE: reusable design helps minimize disposable filter waste over time.
• NO-HASSLE WARRANTY: 1-year limited warranty provides dependable coverage.

Real-world use and maintenance tips

In everyday driving, you may experience more responsive acceleration and consistent air delivery during climbs or highway merges. The filter’s durable flange helps keep the seal tight through road vibrations, while its washable construction supports ongoing reuse. When the time comes, follow the included care steps to re-oil and re-install quickly.

• VERSATILE FOR MANY VEHICLES: adaptable to numerous intake configurations for a broad audience.
• LONG-TERM SAVINGS: washable and reusable design reduces ongoing filter purchases.

Note: Benefits described reflect the product’s features and typical use cases. Actual performance varies with vehicle, setup, and driving conditions.