K&amp;N RC-1950 Universal Clamp-On Air Filter: Round Straight; 2.25 in (57 mm) Flange ID; 2 in (51 mm) Height; 4.5 in (114 mm) Base; 4.5 in (114 mm) Top<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Designed to increase horsepower and acceleration</li><li>Hundreds of sizes and shapes for most applications</li><li>High air flow with excellent filtration</li><li>Clamp-on washable and reusable air filter</li><li>Pliable flanges absorb vibration and can be stretched up to 1/16 In. to fit in-between sizes</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41KJrmnq0kL.jpg" noproxy>