K&N Air Filter
K&N is one of the most popular brands of air filters amongst both driving enthusiasts and non-enthusiasts alike, a reputation earned by their high-quality products. The K&N High-Flow air filter is a good choice for enthusiasts, having been designed to boost performance. Users have reported noticeable differences in overall performance, including everything from throttle response to fuel economy.
K&N claims their air filters are also washable and reusable. Although some may choose to take advantage of this, it's not always worth the hassle over simply purchasing a new one. Despite being on the pricier side, the K&N High-Flow air filter is an excellent choice.
Note: Product shown is 332304. Be sure to select the right part number based on your car's make and model.