The K&N YA-1020 is a pleated, cotton-gauze replacement element for the Yamaha YZF-R1 and R1M 998 cc. The manufacturer describes it as a high-flow, lifetime engine air filter that is washable, reusable, and pre-oiled. Its main draw over the stock element is reuse: owners on user forums note that aftermarket filters can be reused, and that is the main reason people choose them. Forum owners are more skeptical about power. One noted that they give a bit more airflow, but not enough that you really need to change your tuning. Buy this for a reusable, track-day-ready R1 intake element, not for a large horsepower gain. Searches for the YA-1020 K&N R1M air filter, a reusable 2020-2023 YZF-R1 intake filter, and a washable R1 track day filter fit this purpose.
This is a direct swap into the stock airbox, so the work is a filter change rather than an intake modification. Published fitment ranges differ between K&N's regional catalogs, so confirm the model year and R1 versus R1M against your bike before ordering. The filter comes pre-oiled, but owners on forums warn that a K&N can restrict airflow once it gets dirty, so keep it clean and re-oil it at each service. Pair it with the correct fitment check, the seal inspection, and a re-oil schedule to get the most from a washable R1 air filter.
K&N's regional catalogs do not fully agree. The manufacturer's Canadian listing names YZF R1/M 998 models from 2020 to 2023. K&N's Singapore listing includes 2020 and 2021 Yamaha YZF R1 and R1M 998 models. Confirm your exact model year and R1 versus R1M with the manufacturer before ordering.
Yes. The manufacturer states the element is washable and reusable, and it arrives pre-oiled. The manufacturer's listing gives a re-oiling amount of 0.68 oz (20 ml).
The manufacturer claims the filter is designed to provide increased horsepower and torque. User forums are more cautious. One owner's experience is that at most you may gain 1hp with a race, but it's not a big difference. Gains are modest, and real-world results depend on the rest of your setup.
The YA-1020 is a drop-in element for the stock airbox. I did not find a model-specific install sheet for this part, so confirm the airbox access steps in the R1 service manual before starting. The manufacturer's install sheets for other K&N models stress that the filter must be seated and sealed correctly, and that instructions must be followed every time the filter is serviced, or the seal can fail. Check the sealing surface and gasket on every reinstall, and re-oil the element after cleaning.
