The air intake scoop fit for BMW 323i 325i 328i 330i M52 M54 E46 M3 2001-2006,increased engine temperatures and reduces performance. Our design provides the most effective solution to force cold air into the existing intakes, without having to make any modifications. The air intake scoop are made of lightweight powdered coated matte black/red aluminum, this RAM AIR INTAKE SCOOP can withstand the various weather for a long time and has anti-corrosive,air intake scoops are prone to rock chips and such due to it being in the front of the vehicle. Warranty will not cover normal wear and tear under these conditions. Air Intake Scoops transform the OEM ducting system into a functional intake system by reducing engine bay temperatures and increasing performance. The OEM air duct that feeds ambient air into the intakes is, by design, perpendicular to airflow, thus has minimal cold air flowing through to the intakes. The air scoops are designed to introduce a RAM-AIR effect by directing COLD air into the intake from the front grille of your for BMW 3 Series e46 . Using the stock intake in conjunction with the scoop you reap the benefits of an intake system without the heat soak that most aftermarket intakes suffer from. The scoops are especially effective at producing more horsepower at higher speeds(35mph+). A must have mod for BMW 3 Series(E46) 1997 - 2006，if you want more performance from your car! Install takes less than 15 minutes. Please have a professional shop assist with the install. NO cutting required. Bolts right up. PLEASE NOTE THESE ARE INSTALLED UNDER EACH PIN. Not on top of the bumper cover. The air intake scoop is known for the extra air intake or for the sheer pleasure of a color accent. These scoops are the best way to add a subtle mod to your BMW for such a low cost. I don't find you will get a noticeable difference in power. The air intake scoop fit for BMW 323i 325i 328i 330i M52 M54 E46 M3 2001-2006