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aFe BMW S65 Magnum FORCE Stage-2 Si Pro DRY S Cold Air Intake System (M3)


  • £553.99
    exc. VAT £461.66


With an extremely easy maintenance routine and installation, the Magnum Force Stage 2 Si for the E9X M3 is one of the most convenient cold air intake systems on the market. Its sealed housing delivers 29% more cold air to your V8 than your vehicle’s stock configuration.


Roto-Molded Housing
A custom CAD designed housing made from heat soak resistant cross-linked polyethylene is used to reduce the number of components and ensure the coolest air intake charge available.


Black Vacuum Formed Cover
This black vacuum formed cover is constructed from ABS plastic and features a built-in sight window, providing easy inspection of the air filter while maintaining a stylish appearance.


Carbon Fiber Look Trim Cover
This carbon fiber look trim cover is constructed with lightweight vacuumed formed ABS plastic for a sleek appearance.


Roto-Molded Tube
A CAD designed, dyno-tuned intake tube allows for maximum power gains while maintaining a perfect fit and retaining OE connections.


Large 5-Layer Performance Air Filter
This aFe Power Pro DRY S, 6-1/2" tall, oil-free, 360 degree radial performance air filter features three layers of progressive synthetic media. The washable and reusable filter is surrounded by a 100% polyurethane frame, allowing for multiple cleaning cycles and an extra long filter life.


Premium Components
Stainless steel clamps, a silicone coupler, and a silicone hose are provided for strength and durability while also providing the most secure installation available. Magnum FORCE Stage-2 Si intakes are designed with fewer parts for a fast and easy installation.


Emissions Disclaimer
This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.



With a unique filter-to-housing interface and minimal parts, this system is a breeze to install.

  • Measured flow: 685 CFM @ 7" H2O
  • +6 HP / +6 lbs. x ft. Torque max gains
  • Outflows factory intake by up to +29%
  • Enjoy lifelong performance with a washable and reusable Pro Dry S air filter
  • Built-in sight window provides easy inspection of filter without disassembly


Airflow Chart (Click to enlarge)


Dyno Graph (Click to enlarge)



2008-2013 BMW M3 (E90/E92/E93) S65 Engine V8 4.0L


Free UK Delivery

FREE UK delivery on all orders! We can also ship worldwide, simply enter your full address with the correct postal code at checkout to get a shipping quote.


Compatibility Check

To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.






1 year warranty


Manufactured by



Part Number

Black - 51-82952-B

Carbon Fibre - 51-82952-C

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