Inlet diameter: 13mm /0.51inch Size:about 6x5cm/2.36×2.0Inch Package Weight: 112g Material: Aluminum & rubber Color: Red Note: The color of the item may vary slightly due to photography and your own computer brand new Increases horsepower and improves fuel economy. Performance: improves up to 95% filtration efficiency. Made of aluminum alloy with chrome coating material for lightweight and durability. More filtering surface than original filter. Filter can be washed & oiled. Easy installation for a clamp, works with 13mm air intake systems Package Included: 2x Air Filter