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aFe Euro Air Flow Meter Coupling

PART#: 54-12399

BRAND: aFe Power

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$47.49 / each
Ships for free if total order exceeds $99

aFe Magnum Force air flow meter coupling upgrade - Designed for use on a US spec M3 when converting to a European 3.5" mass air flow sensor.

  • Urethane Coupling - This coupling is constructed of tough polyurethane for strength and durability. This engineered coupling upgrade increases air flow and velocity by controlling the air intake dynamics.
  • Suggested for use with aFe intake - This coupling upgrade was designed to be used in conjunction with 51/54-12392 intakes but it can be used with other intakes as well. It retains the traction control throttle body when upgrading to a 3.5" Euro air flow sensor.
  • Hassle-Free Installation - Simple bolt-on installation that requires no cutting or drilling. Includes all hardware required for installation.

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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].


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