K&N 25-1770 Air Filter Foam Wrap PRECLEANER Wrap 3-3/4" X 6"L ymm_2 Each system is handmade in

Each system is handmade in the USA from premium T-304 austenitic stainless steel

They are primarily used for air/oil separation catchers

28 Top Compression Ring Thickness 0

and the exhilarating tone is accompanied by an addictive burbling on every over-run in the sportiest settings

& Down-Pipes MUST 11- 12 OVER AXLE PIPES

K&N 25-1770 Air Filter Foam Wrap PRECLEANER Wrap 3-3/4" X 6"L ymm_2 Each system is handmade inDescription K&N 25 1770 Air Filter Foam Wrap PRECLEANER Wrap 3 3 4" X 6"L The K&N Airforce Pre Cleaner is a foam filter wrap designed to extend the service interval of a K&N air filter in very dusty environments. It can be cleaned using K&N Cleaner or soap and water. Red Airforce pre cleaners are oiled with K&N air filter oil after cleaning and are made from large, open cell foam. Gray Airforce pre cleaners do not use oil and feature smaller foam