aFe Quantum Pro DRY S Air Filter Flat Top - 5in Flange x 9in Height - 21-90098 fits_1999-2004`Audi`A6 The straight through oversized design

The straight through oversized design tremendously increases flow and turbocharger sound by creating a smooth transition between the turbo and intercooler tube

100% MIG-Welded Stainless Steel Construction Ensures Optimal Strength and Durability

Its bold sculpted design amplifies the muscular presence of the X5M/X6M while channeling airflow more efficiently to enhance stability and aerodynamic balance

5" flange and our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience

and aggressive styling—while unlocking the exhaust note it truly deserves

aFe Quantum Pro DRY S Air Filter Flat Top - 5in Flange x 9in Height - 21-90098 fits_1999-2004`Audi`A6 The straight through oversized designWith three layers of progressively finer mesh synthetic media between 100% polyurethane top and base, this high flow, "oil free" conical performance filter provides maximum convenience and easy maintenance with excellent airflow. Washable and reusable for multiple cleanings, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Pliable polyurethane flange with integrated bumps insures