Air Filters, K&N air filter
Do Performance Air Filters Actually Work? K&N vs. Standard Paper Filters
18
Oct
Oct
High-flow drop-in performance air filters (like a K&N oiled cotton gauze element) generally adds between 1 and 4 horsepower at wide-open throttle on modern engines, but it will not noticeably increase fuel economy or transform daily street performance. Modern engine control units (ECUs) automatically adjust fuel delivery based on airflow sensors, neutralizing passive mileage gains. […]