K&N Replacement Air Filters are designed to deliver outstanding filtration while offering high-flow rates for more horsepower and torque. The 33-2284, high-flow filter, was engineered to fit into the factory air box of the 2003 to 2008 Mazda RX-8 without any cutting or fitting required. This simple drop-in design makes adding performance easy. K&N air filters are washable and reusable and are backed by K&N’s Million Mile Limited Warranty. The 33-2284 will be the last air filter your Mazda RX-8 will ever need.