Injen Performance Air Filter 14in Round x 3in Tall - 1in Pleats - X-1090-BR fits_2003-2008`Audi`S4 5” slash-cut

5” slash-cut

boasting an 88-percent increase in core size

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

4214404 is a 4-pad spring-centered race disc made with high quality

When pairing AWE Mid-Pipes to the SwitchPath™ or Track Edition Exhausts

Injen Performance Air Filter 14in Round x 3in Tall - 1in Pleats - X-1090-BR fits_2003-2008`Audi`S4 5” slash-cutWith 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