Product Description Summary

The K&N BM-8518 High-Flow Engine Air Filter is a premium, reusable replacement filter made for BMW GS models (2018 onwards). Designed to boost horsepower and torque, it features multi-layer cotton gauze media for superior filtration and durability. With a perfect OEM fit and a no-hassle lifetime warranty, it’s the ideal performance upgrade for serious riders.

K&N High-Flow Engine Air Filter – BMW F750GS/F850GS 2018+ – Boost Power & Performance

Engineered to enhance your BMW’s performance, the K&N High-Flow Lifetime Engine Air Filter (BM-8518) is a premium replacement filter designed for riders who demand improved horsepower, torque, and long-lasting engine protection. With a washable and reusable cotton gauze construction, it’s built to outperform traditional paper filters.

Performance-Driven Filtration

Enhanced Power Output
Designed to deliver increased horsepower and torque for a more responsive throttle feel.

High-Capacity Pleated Media
Pleated cotton gauze media maximizes the surface area, allowing for long service intervals and consistent airflow.

Superior Engine Protection
Multi-layer cotton gauze construction provides outstanding filtration to keep harmful contaminants out.

Built for Durability & Convenience

Perfect OEM Fit
Application-specific base seal and sealing bead ensure a leak-free fit into your stock air box.

Lifetime Reusability
Pre-oiled, washable, and reusable—engineered to last for the life of your motorcycle.

American Craftsmanship
Made in the USA for over four decades with a commitment to quality and performance.

Specifications

Vehicle Compatibility

Fits All Models of the Following:
BMW F750GS / F850GS / F850GS Adventure / F800GS / F800GS Adventure / F900GS / F900GS Adventure / F900R / F900XR
From 2018 to 2024 | Engine capacities: 853cc & 895cc

Cross References

• BMC: FM01004

• OEM Part: BMW 13728561572

• FAQs

  Q: Is this air filter reusable?
  A: Yes, the K&N BM-8518 is fully washable and reusable. Just clean and re-oil as needed.

  Q: How often should I clean the filter?
  A: Under normal highway conditions, it only needs cleaning every 50,000 miles.

  Q: Will this improve performance?
  A: Yes, it is designed to increase airflow, which can enhance horsepower and throttle response.

  Q: Does it fit my 2023 BMW F900XR?
  A: Absolutely. It is compatible with all models from 2018–2024, including F900XR.

  Q: Is it street-legal and emissions compliant?
  A: Yes, it is emissions-legal in all 50 US states.