Injen High Performance Air Filter - 4.50 Black Filter 6.75 Base / 5 Tall / 5 Top YMM_1998_2004_Land_Rover_Discovery_2_L318 Bilstein's proprietary gas-pressure technology ensures

Bilstein's proprietary gas-pressure technology ensures consistent damping performance

Whether you’re customizing your M3 for show or performance

black dial with white lettering ensures clear visibility

OE-quality fitment ensuring seamless installation

Its California Grade CARB-compliant design ensures it meets strict emissions standards while maintaining durability and performance

Injen High Performance Air Filter - 4.50 Black Filter 6.75 Base / 5 Tall / 5 Top YMM_1998_2004_Land_Rover_Discovery_2_L318 Bilstein's proprietary gas-pressure technology ensuresWith a rich history in racing and the street performance, Injen Technology has proven itself as a leader in filtration engineering and technology. Lab tested and race proven, Injens air filter line features state of the art designs and performance. All of Injens 8 layer cotton gauze oiled air filters feature a tightly layered media that is specified for our use, along with a proprietary filter oil that includes highly advanced tackifiers to stop as