Select the vehicle you are shopping for:





My Garage:

This part is model specific. Please select a vehicle above to ensure that you get the correct part.

AFE Power Flow Intake Kit - With Pro Dry S Filter - Stage 2

PART#: 51-12522

BRAND: aFe Power

Be the first to review this product

Availability: Currently in stock

$382.84 / each
Ships for free if total order exceeds $99

If you want more power out of your BMW, you need to let more air in! To keep engine noise at an "acceptable" level, BMW encases the stock air filter in a plastic housing -- a housing which restricts airflow into the engine. Installing an aFe Stage 2 intake kit eliminates that housing, allowing more air to enter the engine so it can breathe as deeply as it wants. You get stepped-up performance you can both feel and hear.


  • Large Air Filter: 7" tall conical air filter with a 3-1/2" flange opening provides 47 percent greater airflow over the stock intake system. This washable/reusable performance air filter with 3-layers of progressive finer porosity synthetic media providing maximum convenience.
  • Mandrel-Bent Tubing: A 3" one-piece mandrel-bent wrinkle-black powder-coated intake tube directs unrestricted airflow from the massive filter to the turbo for more horsepower and torque.
  • One-Piece Heat Shield: Sturdy 18 gauge powder-coated one-piece heath shield blocks performance-robbing engine heat. This heat shield requires no assembly and uses factory mounting locations for fast and easy installation.
  • Hassle-Free Installation: All clamps, couplings, and hardware are included for hassle-free installation. This is a direct bolt-on kit that requires no cutting or drilling on OEM parts.

Note: This product is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California department of motor vehicles.

Write Your Own Review

You're reviewing: AFE Power Flow Intake Kit - With Pro Dry S Filter - Stage 2

How do you rate this product? *

1 1 star
2 2 star
3 3 star
4 4 star
5 5 star

advanced FLOW engineering, inc. (aFe Power) is a manufacturer of high performance automotive cold air intake systems, performance air filters, fluid filters, throttle spacers, turbochargers, intercoolers, differential cover, transmission pans, headers and exhaust systems. aFe is headquartered in Corona, California in two facilities totaling 164,000 sq. ft. including their 77,000 sq. ft. headquarters and manufacturing facility. An 87,000 sq. ft. warehouse and R&D facility was added in 2012.

aFe's product line up currently includes over 2,300 part numbers, which are all designed, developed and manufactured in their Corona, CA location. aFe Power puts a great deal of focus on the BMW category with one of the most complete lines of performance products for BMW. The aFe Power product line-up includes performance air filters, cold air intake systems and exhaust systems. Many members of the aFe Power team, including their president, are BMW enthusiasts and you will find dozens of new products for various BMW applications launched every year.

Everything we sell comes with a minimum 12-month warranty and a 100% satisfaction guarantee. In addition, products that carry the Bavarian Autosport brand come with a minimum 2-year warranty against defects in materials and workmanship. (Some have lifetime warranties!) If you are unhappy with a product's quality or performance, simply let us know. We'll make it right. Call us at 800.535.2002 or e-mail [email protected].