Unique Computer Design Carbon Fiber Housings: The simple yet elegant design of the one-piece sealed housings makes installation a snap and features our (Patent Pending) filter-to-housing interface. The housing is made out of lightweight high gloss, clear-coated twill weave carbon fiber. Dyno-Tuned Carbon Fiber Intake Tubes: Lightweight, high gloss, clear-coated twill weave carbon fiber tubes to achieve maximum power gains while maintaining a perfect fit. Large 3-Layer "Oil-Free" Performance Air Filter: This Momentum intake system was designed around the largest filter possible to allow maximum performance and filtration. This cone inverted top filter has a large 3-1/2" round flange and is 6-1/2" tall Pro DRY S filter media. The Pro DRY S performance air filter features 3-layers of progressively finer mesh synthetic "oil-free" media and is constructed with 100% polyurethane frame for long life and multiple cleaning cycles. Black Series Momentum Air Intake System: Also included in the kit is a Black Series serialized plate to assure the authenticity of the intake. Premium Hardware: Premium stainless steel clamps and a reinforced silicone coupler are used for strength and durability while also providing the most secure installation available. Momentum intakes are designed with fewer parts for a quick and simple installation. Note: This intake system is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles. Black Series Carbon Fiber Cold Air Intake System w/ Pro DRY S Media BMW M3/M4 (F80/82/83) 15-19 L6-3.0L (tt) S55 BMW M3/M4 (F80/82/83) 15-18 L6-3.0L (tt) S55