![E-9289 K&N Replacement Air Filter [K&N]](http://empireperformance.com.au/cdn/shop/files/E-9289-K-N-Replacement-Air-Filter-K-N-KNE-9289-25315536863319_c375a9df-8943-4908-8e71-d5308676602d_{width}x.jpg?v=1752630780)
![E-9289 K&N Replacement Air Filter [K&N]](http://empireperformance.com.au/cdn/shop/files/E-9289-K-N-Replacement-Air-Filter-K-N-KNE-9289-25315536863319_c375a9df-8943-4908-8e71-d5308676602d_580x.jpg?v=1752630780)
The K&N E-9289 Air Filter is designed to increase horsepower and protect your engine by reducing restriction and providing excellent filtration. The E-9289 custom air filter is manufactured to replace the air filter in the 57S-4000 performance air box and it comes with a K&N embossed lid cap. The filter media can be washed and reused repeatedly.