K&N Bolt-On Unit 83-90 Alfa Romeo 33 - 56-9082 fits_2015-2021`Ford`Mustang and 9 for hassle-free bolt-in

and 9 for hassle-free bolt-in fitment

Engineered to replace restrictive factory pipes

Constructed out of black anodized CNC billet aluminum for maximum strength and style

Outside Diameter: 5/8" - 18

Manufactured using 100% genuine 3K Twill-Weave (2X2) Pre-Preg Carbon Fiber with our signature autoclave technology   these lower vents are then finished with multiple coatings of high-gloss UV-resistant clear coat

K&N Bolt-On Unit 83-90 Alfa Romeo 33 - 56-9082 fits_2015-2021`Ford`Mustang and 9 for hassle-free bolt-inK&N Custom Air Filters for Single or Two Barrel Carburetors K&N custom air filter kits are designed to boost performance from your carburetor while keeping the dirt on the outside where it belongs. These assemblies come with custom chrome top and base plates and the famous K&N High Flow Washable Air Filter. Features & Benefits One year limited warranty Downloads & Resources Installation Instructions (PDF) Link To Manufacturer Page