The K&N HA-5013 is a washable, reusable replacement air filter for the 2013 Honda CB500F, CB500X, and CBR500R, including the ABS versions. It is a tapered oval element built on K&N's high-flow design, and the manufacturer says it fits inside the stock air box on these bikes. Because the element can be cleaned and reused, it avoids the recurring cost of disposable paper filters. K&N air filters are backed by a 10-Year/Million Mile Limited Warranty.
The case for this filter over stock is airflow without the usual tuning penalty. The manufacturer states the HA-5013 is intended to add performance without any need for modifications or tuning on the listed models. Enthusiasts searching for a 2013 CB500F ABS intake upgrade, a CBR500R reusable air filter, or a CB500X washable motorcycle air filter are typically looking for that combination of better intake flow, a filter they can service repeatedly, and no fueling changes. Exact horsepower or airflow gains have not been confirmed by the manufacturer, so treat any gain claims as unverified.
Fitment and install context matter here. Confirm your model year before ordering, because manufacturer literature and other listings do not fully agree on coverage. For installation, owner-made video walkthroughs exist for the 2013–2015 CB500F, and should also apply to Honda CBR500R and CB500X motorcycles. This is a short airbox-access job rather than a full intake rebuild, which makes it a practical first intake upgrade for a shop-savvy rider.
According to the manufacturer, the HA-5013 is designed to work on the listed Honda models without modifications or tuning.
The manufacturer describes K&N filters as washable and reusable, engineered to last the life of the motorcycle, and backed by its Million Mile Limited Warranty.
The manufacturer states the HA-5013 is engineered to fit inside the factory air box on the listed 2013 through 2016 models.
The HA-5013 drops into the factory airbox, so the job centers on removing the airbox cover, swapping the element, and reseating the sealing surface. Owner-made video walkthroughs show this process on the 2013–2015 CB500F, and it is a how-to video for installing a K&N Air Filter HA-5013 on that model. Watch for a clean, even seal at the airbox lip so unfiltered air cannot bypass the element. Specific tools, torque values, and the manufacturer's cleaning and oiling procedure were not confirmed during research, so check the manufacturer's instructions before servicing.