Active Autowerke Cold Air Intake & Brake Duct Kit BMW E39 M5 99-03

The Active Autowerke Cold Air Intake (CAI) System will increase the performance of the BMW M5 (e39) by up to 25 horsepower and 39.18 ft./lbs. of torque at the rear wheels when measured on a dyno (Mustang MD250 chassis dyno with hood closed simulating road conditions). It offers a new level of innovative engineering, maintaining a factory-like appearance. The low restriction K&N air filters that are included, are just as easy to service as the the factory filters.

The additional front openings produce a ram-air effect, delivering a constant flow of cool air to the intakes. The increased air flow is also attributed to larger and longer air intake tracts.

Ducts for front brake cooling are operational once this system is installed. Cool air is now delivered to the front brakes, a welcome braking upgrade to complement the performance gains.

The Package Includes:
Center grille with 2 CNC'd ram air funnel openings
2 fully functional brake cooling ducts
2 fully functional brake cooling duct housings
2 fully functional duct hose extensions
2 low restriction K&N air filters

About Manufacturer: Active Autowerkes
Many rave reviews and magazine articles have been written about Active Autowerkes, and these kits and their many successors since have become well known for their durability, clever bolt-on engineering, affordable pricing – and their ability to breathe fire into the everyday BMW and its owner. No longer a brand known just around Florida, today’s Active Autowerke is known worldwide for its line of flawlessly engineered and manufactured performance parts for the entire Beemer.

As new models and challenges continue to be born, Active Autowerke continues to invent – and deliver – world class, new ideas and innovations that make them run better.