Description Videos Reviews AEM DryFlow Replacement Air Filter for the AEM intake system for the MINI Cooper S (21-699C & 21-721C) 21-2027DK is the direct fit replacement. The filter is a washable synthetic air filter designed for an optimum combination of air flow, filtration, and performance. AEM Dryflow filters use an innovative high performance oil-free filtration material that allows easy cleaning, durable service, and excellent filtration. Designed to increase horsepower and throttle response AEM Air Filters are cleanable and reusable for the life of your vehicle Captures up to 99% of harmful contaminants Outstanding performance even in dusty racing conditions Manufactured in the USA Does not require oil Will NOT void vehicle warranty For easy cleaning instructions, please click on the video tab above! Cleaning Spray Link Product Specifications: Part Number: aem21-2027DK Description:AEM DryFlow Air Filter (Round Tapered Air Filter) Air Filter Color:Red Air Filter Large End Diameter:6.25 in (159 mm) Air Filter Material:Non-woven Synthetic Air Filter Shape:Tapered Conical Base Outside Diameter:6.25 in (159 mm) Flange Angle:0 degrees Flange Inside Diameter:2.75 in (70 mm) Flange Length:1.25 in (32 mm) Flange Offset:0 in (0 mm) Flange Type:Centered Flanges:1 Height:7 in (178 mm) Inner Structural Support:No Top Outside Diameter:5.25 in (133 mm) Top Style:Rubber Filter Style:Dry Height (in.):7 Overall Length (in.):NA Warranty:Limited Lifetime Washable:Yes Flange Inside Diameter:2.750 in. (70mm) Flange Length:1.250 in. (32mm) Item Weight:0.9000 lbs. Automotive Item Grade:High Performance Item Height:7.00 in. (178mm) Base Outside Diameter:6.250 in. (159mm) Air Filter Large End Diameter:6.250 in. (159mm) ***Please note - this cannot be exported outside of the USA.*** Official AEM Dryflow® Air Filter Cleaning Instructions Learn how to clean your AEM Dryflow® Air Filter.