aFe MagnumFLOW Pro DRY S Universal Air Filter 5.5in. F / 7in. B / 5.5in. T (Inv) / 6in. H (IM)With 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

A6 Quattro 1998-2000

Engineering design and race testing ensures the ultimate in quality and longevity

A = 1802 cm² (+21%)

Lid Length: Back to nozzle end: 4" (101mm)

The bellmouth

Unitronic's Stage 1 TCU Performance Software shift points are optimized to give you the best performance possible out of your OEM software or your Unitronic Stage 1 ECU Performance Software

BMW 3-Series Coupe

The 'Open-Air-Box' system gives you the abundance and unrestricted 360° of air source compared to OEM's sealed airbox with a flat filter and tube-fed air source

OE Part # 31351095664 / 31-35-1-095-664 / 31 35 1 095 664

Genuine BorgWarner 360 deg high-performance motorsport journal bearing system is fitted

30mm tolerance to provide engagement to the stock mounting bracket without any interference

Modular Design Fits Both B8 (Pre-Facelift) & B8