aFe Magnum FORCE Intake Filter w/Pro GUARD 7 (7x5-1/4)IN F x(10x7-1/4)IN B (6-7/8x4-7/8)IN Tx7-7/8IN 1991-nissan-d21-esi5049366 and for good reason

and for good reason

ONLY works with Infiniti Q50 Sedan VQ37 or VR30

These oil rail ball tubes are crucial to the operation of your Powerstroke's fuel injectors

These TIG welded bolt-on arms have repositioned ball joints that increase caster improve the camber curve resulting in enhanced stability and traction

3L EcoBoost the cleanest and coolest air possible

aFe Magnum FORCE Intake Filter w/Pro GUARD 7 (7x5-1/4)IN F x(10x7-1/4)IN B (6-7/8x4-7/8)IN Tx7-7/8IN 1991-nissan-d21-esi5049366 and for good reasonWith seven layers of progressively finer mesh cotton gauze synthetic media between 100 percent polyurethane top and base, this high flow "oiled" conical performance filter provide maximum protection with highest cumulative filtration efficiency for severe duty environments. Washable and reusable for multiple cleanings, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated