The K&N 33-2471 is a reusable panel-style replacement for the 1.4-liter four-cylinder in the 2012-2017 Fiat 500. K&N lists it as the FIAT 500 L4-1.4L F/I part, and the manufacturer describes the filter as layered, oiled cotton media engineered to improve airflow and capture contaminants. Because the element is washable, you clean and re-oil it rather than replacing it at every service, which offsets the higher upfront cost over the life of the car.
Compared with a stock paper element, this filter is built for higher airflow while still filtering well, and the manufacturer says the filter only needs cleaning every 75,000 miles under normal highway driving conditions. Owners on user forums have reported a noticeable change in throttle response after installation, though results vary by car. Note that the manufacturer's catalog lists the Fiat 500 Abarth turbo under a different part, 33-3014, so confirm your engine code before ordering. Long-tail searches this part serves include "2012-2017 Fiat 500 1.4 drop-in performance air filter," "reusable Fiat 500 1.4 air filter," and "33-2471 non-turbo Fiat 500 intake."
The manufacturer's catalog lists the Fiat 500 Abarth turbo under part number 33-3014, so 33-2471 is the filter for the non-turbo 1.4L L4. Verify your engine before ordering.
The manufacturer specifies cleaning about every 75,000 miles under normal highway driving. Harder use may call for more frequent service.
The manufacturer lists a re-oiling amount of 1.15 oz (34 ml). Use only K&N filter oil.
This is a drop-in swap: remove the factory airbox lid, pull the paper element, wipe the sealing surfaces clean, seat the K&N into the box, and refasten the lid. K&N's general install guidance notes that the clips may need more pressure than with a factory foam seal, so stop and recheck the seating if the airbox begins to bend. Owners on user forums describe the Fiat 500 airbox as a tight workspace, so plan for skinned knuckles and take your time. Make sure the filter sits in the lid groove before fastening, and confirm the lid is fully seated on the base. The manufacturer's model-specific install sheet for this part was not located during research, so these steps reflect general K&N guidance.
