K&N Air Filter Foam Wrap (25-3750) Audi > A3 > (8V) 2013-2020 > 1.0TSI Gray colored Airforce pre-cleaners do

Gray colored Airforce pre-cleaners do not use oil

as well as the Suzuki Swift Sport 1

The OEM part design requirements are a balance between performance

1 x Mann Pollen Filter (CU 20 006)

K&N Air Filter Foam Wrap (25-3750) Audi > A3 > (8V) 2013-2020 > 1.0TSI Gray colored Airforce pre-cleaners doThe K&N Airforce Pre Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used in very dusty conditions. The Airforce Pre Cleaner is designed to be cleaned with K&N Cleaner or soap & water. Red colored Airforce pre cleaners are oiled with K&N air filter oil after they are cleaned. They are made from large, open cell foam. Gray colored Airforce pre cleaners do not use oil. They have smaller