K&N Replacement Air Filter - BMW F3X / F2X | 33-3051

K&N® washable, reusable High-Flow Air Filters™ features a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!


Part #'s


13-71-2-454-387 / 13 71 2 454 387 / 13712454387

137-178-691-835 / 137178691 835 / 137 178 691 835/ 137178691835

137-185-771-7 / 137185771 7 / 137 185 771 7 / 1371857717

13-71-8-577-170 / 13 71 8 577 170 / 13718577170

13-71-8-577-171 / 13 71 8 577 171 / 13718577171

13-71-8-605-164 / 13 71 8 605 164 / 13718605164

13-71-8-632-502 / 13 71 8 632 502 / 13718632502

13-71-8-691-835 / 13 71 8 691 835 / 13718691835

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