aFe - MagnumFORCE AIS Coupling Reducer for 95-99 BMW M3 (3.5" to 2.75")

The aFe MagnumFORCE AIS Coupling Reducer (Part #59-10081) is engineered to improve airflow compatibility and reliability within your BMW M3’s intake system. Constructed from 100 % polyurethane, this durable coupling provides excellent flexibility and resistance to heat, ensuring a long service life under demanding driving conditions.

A stainless-steel sleeve embedded in the neck reinforces the structure, maintaining rigidity while preventing deformation and wear. The design transitions smoothly from a 3½-inch inlet—ideal for Euro MAF sensors—down to a 2¾-inch outlet that connects directly to U.S.-spec throttle bodies. This precise fitment enhances intake efficiency and ensures airtight sealing for consistent power delivery.

Perfect for use with aFe Magnum FORCE Cold Air Intake Systems, the coupling reducer simplifies upgrades or replacements while delivering dependable performance and superior airflow dynamics. Whether you’re optimizing your stock setup or building a custom intake, this component offers a clean, professional connection built to endure high-performance environments.

Features:

• Made from 100% polyurethane for durability and flexibility

• Stainless steel sleeve in the neck for added rigidity and longevity

• Inlet diameter of 3-1/2 inches to Euro MAF sensors

• Reduces down to 2-3/4 inches to match US throttle bodies

• Compatible with BMW M3 models from 1995 to 1999

• Designed for use with Magnum FORCE Cold Air Intake Systems

Fitment:
1995 BMW M3 Base
1995 BMW M3 Lightweight
1996 BMW M3 Base
1997 BMW M3 Base
1998 BMW M3 Base
1999 BMW M3 Base