K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height - RU-3600 fits_2010-2016`Honda`CRZ warped inserts or loose ring

warped inserts or loose ring gears

In-line check valve prevents can from being pressurized under boost

Retains Factory Airbox and Covers For An Easy Install

Aggressive Sound: Dual

This unique entry design also reduces intake whistle that commonly occurs with other helix-only styles

K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height - RU-3600 fits_2010-2016`Honda`CRZ warped inserts or loose ringK&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra strong molded pliable rubber flanges which absorb vibration and allow for secure