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to support your aftermarket transmission dipstick
* Bore x stroke: 4
K&N intakes are designed to dramatically reduce air flow restriction as well as smooth and straighten air flow
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33-3042 K&N Replacement Air Filter, 2014 - 2018 BMW X3/ X4/ X5/ 518d/ 520d 10 bolt to support your aftermarket transmissionOVERVIEW K&N washable, reusable High Flow Air Filters feature 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. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product! DETAILS ENGINEERED POWER: State of the art air filter media is designed to increase horsepower and acceleration as