The APR high flow drop-in air filter is an effective and economical way to enhance the intake system of the 2.0 TFSI EA888.3/4 engines used in various models like the S3 8V, S3 8Y, Golf 7 GTI, Golf 7 R, Golf 8 GTI, Golf 8 R, Polo GTI AW, and Leon 3 Cupra. Constructed from multi-layer cotton gauze, t..