Injen Performance Air Filter 14in Round x 3in Tall - 1in Pleats - X-1090-BR fits_2003-2008`Audi`S4 When pairing AWE Mid-Pipes to

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

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

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

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

Injen Performance Air Filter 14in Round x 3in Tall - 1in Pleats - X-1090-BR fits_2003-2008`Audi`S4 When pairing AWE Mid-Pipes toWith 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