aFe Magnum FORCE Stage-2 Si Cold Air Intake Pro 5R Black for 2006-2013 BMW 1 & 3 Series (L6-3.0L) 54-81012-B

Fits select 2006-2013 BMW 128i, 325i, 328i, 330i, 335i, and 335d models (L6-3.0L). See the compatibility table below for full vehicle details.

The aFe Magnum FORCE Stage-2 Si intake system replaces your vehicle's restrictive factory airbox with a high-efficiency, sealed performance housing. This system features a cross-linked polypropylene rotomolded plastic airbox and a precision-engineered intake tube designed to maximize airflow volume and velocity. By pulling cold air from outside the engine compartment through a built-in ram scoop, this system ensures a consistent supply of oxygen-rich air for improved combustion and throttle response.

At the heart of this system is the Pro 5R air filter—a 360-degree, five-layer washable and reusable cotton gauze media that provides maximum airflow and convenience. The sealed design significantly reduces intake noise compared to open-element systems while delivering a substantial 48% increase in CFM flow over the stock configuration.

• Manufacturer Part Number: 54-81012-B
• Flow Increase: +48% CFM over factory intake
• Filter Media: Pro 5R (5-layer washable/reusable cotton gauze)
• Housing Material: Heat-resistant rotomolded plastic with sealed cover
• Hardware Included: All necessary mounting hardware and intake tube
• Warranty: 2-year limited warranty