Terisass Air Filter 13mm/0.5in Car Intake Crankcase Vent Valve Cover Breather Universal (Red)+ 20mm

️Working principle: increase the intake air flow, filter the impurities in the air, make the engine breathe more smoothly, prevent the dust suspended in the air from being sucked into the cylinder, and reduce the wear of the piston group and the cylinder. for motorcycle crankcase air filter ️Unique shape: The unique shape of air intake reduces the resistance of the engine's air intake, and improves the amount of air intake and volumetric efficiency per unit time when the engine is running. for integra valve cover filter ️Professional tools: cold air intake is installed in front of the carburetor or intake pipe to filter out dust and sand in the air and ensure that there is enough clean air to enter the cylinder. for breather filter ️Easy to install: Easy to install, no complicated tools, easy to use. Applicable gearbox type: MT manual gearbox. Available colors: red, blue, silver, black. Inner diameter: about 13 mm 0.5 inch Outer diameter: about 20 mm 0.8 inches for breather valve filter ️After-sales service: We provide a 12-month product warranty and a 30-day money-back guarantee. If you like our products, please rest assured to buy. for mini valve cover filter