Hofmann Designs Stage 1 Round Air Cleaner

Premium 5.5” Round Air Cleaner with Carbon Fiber Insert

Take your Harley-Davidson’s performance and style to the next level with the Hofmann Designs Stage 1 Round Air Cleaner, designed to fit any 5.5” round air cleaner setup. This 100% bolt-on upgrade is crafted for riders who value both precision and aesthetics — combining billet craftsmanship with a sleek carbon fiber insert that perfectly complements the Signature Series line.

Built for performance and design harmony, this air cleaner backing plate delivers a clean, custom appearance that ties in seamlessly with Hofmann Designs and Nowaskey Suspension builds.

Key Features

• Universal Fitment: Designed for any 5.5” round air cleaner.

• 100% Bolt-On Installation: Simple, precise fit — no cutting or modification required.

• Carbon Fiber Insert: Lightweight and durable, adds a high-end visual finish.

• Signature Style Options: Available in Standard 5-Spoke or Directional 5-Spoke designs.

• Includes Hardware: Comes complete with all necessary mounting hardware.

• Filter Not Included: Pair with your preferred high-performance air filter for optimal results.

Designed to Match the Signature Series Line

The Stage 1 Round Air Cleaner carries the same precision-machined aesthetic as Hofmann’s Signature Series billet parts, ensuring your Harley-Davidson Road Glide, Street Glide, or Softail build looks cohesive from front to back. Whether you’re upgrading your existing setup or creating a custom build, this air cleaner provides the perfect combination of performance, function, and modern design.