K&N Air Filter Foam Wrap (25-5167) Mercedes > B-Class W246 (2011-2018) > B200 with all three cores having

with all three cores having different internal and external fin pitches and configurations

These are only recommended if you want to stiffen the standard bushes slightly and the original bushes are in good condition

500ml Bottle - Treats up to 5 Litres of oil

alongside the usual daily and spirited driving

please select your choice using the options above

K&N Air Filter Foam Wrap (25-5167) Mercedes > B-Class W246 (2011-2018) > B200 with all three cores havingThe 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