aFe MagnumFLOW Air Filters OER PDS A/F PDS Subaru Impreza WRX STI 08-11 H4-2.5L Transmission Mounts permitting a direct intake manifold

permitting a direct intake manifold connection

AEM's 21-5011 is ideal for engine swaps when a custom intake is required

Having said that both the stock intercooler and the PW upgrade intercooler were subject to exactly the same test conditions

Note: This intake system is designed specifically for the BMW F10 M5 models listed above

angle cut rolled tip comes with intercooling vents and a unique laser-cut aFe Power logo plate riveted on for an aggressive style

aFe MagnumFLOW Air Filters OER PDS A/F PDS Subaru Impreza WRX STI 08-11 H4-2.5L Transmission Mounts permitting a direct intake manifoldConstructed with 100 percent polyurethane boxed frame, this non oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the