K&N Replacement Engine Air Filter

The K&N 33-2409 is the original high-flow engine air filter, designed to maximize horsepower, acceleration, and fuel efficiency. Since 1969, K&N Engineering has been at the forefront of high-flow air filter technology. Constructed with 4 to 6 layers of cotton gauze sandwiched between epoxy-coated aluminum wire screens, the K&N 33-2409 is treated with a specialized oil to capture dust particles, ensuring clean air reaches the engine. The servicing interval is up to 50,000 miles before cleaning is needed, depending on driving conditions. K&N backs this filter with a Million Mile limited warranty, stating it will last longer than the vehicle it is installed in. Installation is straightforward as the K&N 33-2409 is a direct replacement for the factory air filter and can be installed in minutes without the need for specialized tools or modifications. This filter is also emissions legal in all 50 US states.