Large 3 - Layer Oil - Free Performance air Filter This sealed intake system utilizes an oil - free, large 5 tall conical 360 degree radial flow performance air filter with 3 - Layer progressively finer porosity synthetic media for maximum convenience. Roto - mold Tube This System uses CAD designed, dyno - tuned, roto - mold intake tube to achieve maximum power gains while maintaining a perfect fit. Hassle - Free Installation All necessary hardware are included for hassle - free installation. This is a direct bolt - on kit that requires no cutting or drilling on OEM parts.