Injen Performance Air Filter 14in Round x 3in Tall - 1in Pleats - X-1090-BR fits_2003-2008`Audi`S4 and produce increased power figures

and produce increased power figures without the need for a full aftermarket intake system

Flattened machined catch can top and knurled bottom allow ease of maintenance

Compatible with 2021+ BMW G82 M4 Coupe / G83 M4 Convertible

Includes 9 Quarts of PROGUARD Synthetic 75W-90 Gear Oil for Front & Rear Axles

Injen Performance Air Filter 14in Round x 3in Tall - 1in Pleats - X-1090-BR fits_2003-2008`Audi`S4 and produce increased power figuresWith 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, Injen's air filter line features state of the art designs and performance. All of Injen's 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