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.