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Direct bolt-on application for straightforward installation without any modifications
and an adaption point on the side of the airbox for Injen's upcoming snorkel
especially cars driven on track by professionals and amateurs alike
The factory injectors found in the Audi S3
aFe QUANTUM Intake Replacement Air Filter w/ Pro 5R Media (23-91132) APR_STEK Direct bolt-on application for straightforwardQuantum Pro 5R Oval Tapered Blue Air Filter (23 91132) by aFe. Quantum Pro 5R air filter by aFe Power is specifically designed for the Quantum Series cold air intake systems and feature an injection molded base and top for lighter weight and rigidity. The newly designed base includes a built in, 3 angle velocity stack for smooth, even airflow. The Quantum Pro 5R filter is a 360 degree radial flow air filter with oiled, 5 layer progressive cotton
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