AEM Cold Air intake systems create MORE horsepower than cheaper inferior cold air intake systems. Only AEM cold air intake systems feature CNC mandrel-bent 6061 aluminum intake pipes that are individually tuned in both length and diameter to maximize power in each application. Every AEM cold air intake is powder coated and has TIG-welded fittings and brackets. AEM Cold Air intake systems relocate the filter outside of the engine compartment for a cooler intake charge and more power over the rpm range. For filtration, AEM utilizes its new lightweight urethane, four-layer cotton-gauze filter that features a redesigned air horn that makes an additional 1-3 HP on our Air Induction Systems. All AEM cold air intake systems are C.A.R.B. exempt or pending exemption (50 state legal) and come with complete installation hardware, comprehensive instructions, AEM decal and license plate frame.