This is a replacement air filter, specially designed for Dinan Air Intake systems. Dinan air filters offer excellent filtration without reducing the airflow. This results in better combustion, which in turn leads to superior performance.

Dinan has been in the manufacturing business for more than 35 years, and they are recognized in the market as a serious tuning company. Dinan designs and manufactures high performance aftermarket products that can set a vehicle apart from others. All the Dinan products are designed and manufactured proudly in the United States, and their products ranges from accessories, apparel, brakes, chassis tuning, driveline tuning, engine tuning, exhaust, racing products, signature packages, suspension tuning, and wheels. Dinan was established in 1979 as North America's premiere tuner for BMW. They have Authorized Dinan Performance Centers where they efficiently distribute their long line of products. Dinan is also connected to select Independent BMW Service/High Performance facilities and BMW Dealerships. This amazing company expanded their reach to other European big names such as Mercedes, Audi, and Porsche. Dinan offers unrivaled warranty programs that greatly appeals to BMW enthusiasts and professionals.

Dinan is recognized in the automotive industry as the perfect solution for enhancing BMW vehicles without voiding the factory warranties. There are also pre-owned BMWs available in the Dinan BMW Dealerships, with high performance vehicles that are offered with similar warranty coverage as the original BMW programs.