aFe POWER Magnum FORCE Stage 1 Pro DRY S Cold Air Intake Induction Kit for BMW Z4 M (Z4M) S54 3.2 E85/E86 2006-2008 Coupe/Roadster | Oil-Free Washable Cone Filter Airbox Upgrade | PN 51-11521

aFe POWER High-Flow Induction System for BMW Z4M S54 E85 E86 | Oil-Free Dry Element | PN 51-11521

Give your Z4M’s legendary 3.2 straight-six the breathing it deserves with this genuine aFe POWER high-flow induction upgrade. Designed specifically for the S54-powered BMW Z4 M Coupe and Roadster, this airbox replacement delivers dyno-proven gains of up to 11 bhp and 10 lb ft, with up to 90 percent more airflow compared to the factory setup. Expect crisper throttle response, stronger mid-range pull and a purposeful induction note without the hassle of an oiled filter.

Using an oil-free, washable synthetic filter element, a robust heat shield and a smart black aluminium top cover, this intake is engineered to keep intake temperatures in check while maximising flow. It bolts to OEM mounting points for a neat, reversible install. We have fitted this kit on S54 cars ourselves and customer feedback has been consistently positive on build quality, fit and real-world drivability improvements.

Key reasons to choose this intake

• Measured performance: up to +11 bhp and +10 lb ft with freer breathing on the S54
• Big flow increase: up to 90 percent more airflow versus the stock airbox
• Oil-free dry synthetic media: washable, reusable, easy to service with no MAF contamination risk
• Thermal control: powder-coated 16 gauge heat shield and aluminium lid help reduce heat soak
• Smoother airflow path: billet 3-angle adaptor improves inlet velocity and throttle response
• Durable construction: 100 percent polyurethane filter for long service life and multiple cleaning cycles
• Direct fit: utilises factory mounting locations, no cutting, no mapping required

What you will notice

• Sharper pedal response and improved mid-range torque
• Richer, more characterful intake sound under load with refined cruising manners
• Serviceable filter element you can clean and refit in minutes

In the box

• 5.5 inch conical aFe oil-free dry synthetic performance filter
• One-piece black powder-coated heat shield
• Black aluminium top cover for easy access
• Billet 3-angle filter adaptor
• All required brackets and hardware

Vehicle compatibility

• BMW Z4 M Coupe E86, 3.2 S54, 2006 to 2008
• BMW Z4 M Roadster E85, 3.2 S54, 2006 to 2008

Part number

aFe POWER 51-11521

Fitment verification

Add your UK registration or the last 7 digits of your VIN at checkout and we will confirm compatibility for your Z4M before dispatch.

Professional fitting

Prefer us to install it. MJ Modifications offers fitting at our Warwickshire workshop. Email info@mjmodifications.co.uk for a quotation and availability.

Warranty

Supplied with a 1 year manufacturer warranty.

Why buy from us

We run and install these on S54 platforms and our customers rate the quality, the noise and the on-road gains. It is a straightforward bolt-on that transforms response without the maintenance of an oiled element.

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