BMW 528xi Air Filter

K&N HIGH FLOW DIRECT FIT AIR FILTER, RED -- 50-state legal; Provides 1 to 4 h.p. power gain; 96 to 99 percent filtration efficiency; 1.125 in. height, 11.375 in. outside length, 9.125 in. outside width; Oiled element; Unique style; Made of multiple interwoven layers of surgical cotton gauze; Increases horsepower and acceleration while providing excellent filtration; Custom designed to fit into existing air box and features a drop-in design which means adding performance is simple; Provides high air flow with excellent filtration; Economical and environment friendly; Works with OEM vehicle electronics; Will last the life of your vehicle; Washable and reusable; Lasts up to 50,000-mile before cleaning is required depending on drive condition; With K&N's limited million mile warranty.

Fits the following 2008 BMW 528xi submodels:

• 2008-2008: Base; 6 Cyl 3.0L;

HASTINGS PREMIUM AIR FILTER -- Up to 99 percent filtration efficiency; 11.59375 in. x 1.8125 in.; Panel style; This Air Filter is built to meet or exceed OE specifications; Features permapleat construction that forms dividers between pleats and prevents bunching for insured uniform air flow; Its heavy-duty radial seal gasket is formed from a special urethane compound that will not degrade under temperature extremes and even under changes in restriction or vibration; It has spiral glue binding for added pleat stability and flexible outer edges that allow deflection for easy insertion and removal in housings; Replaces BMW 13717521033; With Hastings' limited warranty.

Fits the following 2008 BMW 528xi submodels:

• 2008-2008: Base; 6 Cyl 3.0L; "GAS, FI, N52B30A"

BECK-ARNLEY AIR FILTER -- A High Quality, Direct-Fit OEM Replacement Air Filter

Fits the following 2008 BMW 528xi submodels:

• 2008-2008: Base; 6 Cyl 3.0L;

Fits the following 2008 BMW 528xi submodels:

• 2008-2008: All Submodels; All Engines;