Select to watch product video Click for related products Click for product charts and graphs Click for customer reviews
jQuery Slideshow

This air intake system produces 11 max horsepower, 10 lbs. x ft. torque and out-flows the factory intake by 90%. This air intake system offers a washable/reusable "oiled" conical air filter with inverted top that directly mounts to a unique 3-angle billet filter adaptor that helps smooth the air transition into the intake tract for better performance. A one-piece black powder-coated heat shield and cover requires little to no assembly for a hassle free installation.



Cold Air Intake System


Stage-1 Magnum FORCE PRO 5R 
'06-'08 BMW Z4 M Coupe & Roadster, 3.2L L6

54-11521

Stock Availability:
IN STOCK

MSRP: $598.75
Sales Price: $502.95
You Save: $95.80

5-1/2" Conical Filter with Inverted Top:

This intake utilizes a huge, 5-1/2" conical Pro 5R performance air filter with inverted top for maximum flow. This 5-layer progressive, oiled cotton gauze air filter provides maximum flow for increased horsepower and torque.


One-Piece Filter Housing:

The air filter is housed in a one-piece, black powdercoated 16-gauge heat shield that keeps warm engine air out for maximum performance. This one-piece heat shield uses factory mounting locations and comes with all hardware for a hassle-free installation.

Black Aluminum Cover:

An attractive black aluminum cover is included to keep temperatures down while providing ready access to the filter for servicing.

Billet 3-Angle Adaptor:

A billet 3-angle adaptor is used to speed up the air flow for improved performance and throttle response.

Weight: 10 lbs