BMW X4 Air Filters

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

This filter features five layers of pre-oiled cotton gauze media to provide maximum performance. Its progressive layering allows the filter to flow at high levels even when dirty. This media is perfect for street and/or track use. Pro 5R filters are easily recharged with aFe’s POWER CLEANER and blue air filter oil. aFe POWER performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity. This pliable sealing surface conforms to even the most uneven filter housing, making for a perfect filter fit and sealing surface every time. This design eliminates the use of gaskets or sealants and always goes back to its original form. All aFe POWER flat panel performance air filters are constructed with a full 360-degree polyurethane frame. Unlike other materials that degrade after repeated heat cycles in an engine bay, polyurethane maintains its original molded shape.

Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

To achieve optimum performance, combustion engines require clean intake air. If pollutants in the air, such as soot or dust, get into the combustion chamber, pitting may occur on the cylinder heads, causing premature wear of the engine. The function of electronic parts located between the suction and the combustion chamber may also be significantly impaired. MANN-FILTER air filters are the end of the road for all dirt particles. No matter whether it’s dust, pollen, sand, soot or even water droplets – thanks to the highest degree of dirt separation and high mechanical stability, MANN-FILTER air filters filter even the smallest particles out of the intake air. This enables an optimum composition of the fuel-air ratio and ensures that the engine performance is consistent. In order to guarantee performance, air filters must be checked regularly, as a blocked filter will impede the air supply to the engine. The possible consequence of this is: the fuel may not be completely burned and may in part be discarded without being used.

To achieve optimum performance, combustion engines require clean intake air. If pollutants in the air, such as soot or dust, get into the combustion chamber, pitting may occur on the cylinder heads, causing premature wear of the engine. The function of electronic parts located between the suction and the combustion chamber may also be significantly impaired. MANN-FILTER air filters are the end of the road for all dirt particles. No matter whether it’s dust, pollen, sand, soot or even water droplets – thanks to the highest degree of dirt separation and high mechanical stability, MANN-FILTER air filters filter even the smallest particles out of the intake air. This enables an optimum composition of the fuel-air ratio and ensures that the engine performance is consistent. In order to guarantee performance, air filters must be checked regularly, as a blocked filter will impede the air supply to the engine. The possible consequence of this is: the fuel may not be completely burned and may in part be discarded without being used.

Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter.

Carquest Premium engine air filters are designed to meet OE fit, form and function for optimal filtration and engine protection. High-quality paper, enhanced bonding, and reinforced metal screen backing give Carquest Premium air filters the added strength and durability that modern engines demand. Built to meet or exceed original equipment standards, Carquest Premium air filters provide exceptional engine protection and optimal performance in all driving conditions.

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. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N’s No-Hassle Lifetime 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!