aFe BMW B58 Magnum Stage-2 Pro 5R Intake Carbon Fibre Look for M140i, M240i, 340i, 440i
Unlock proven performance on your BMW B58 with the aFe Magnum Stage-2 Pro 5R enclosed intake. Dyno tested for gains of up to +9 bhp and +10 lb ft, this high flow, enclosed air intake kit outflows the factory airbox by up to 11 percent and delivers efficient, repeatable airflow for your turbocharged 3.0 B58 engine. Perfect for BMW M140i, M240i, 340i and 440i owners seeking a quality performance induction kit with a premium carbon fibre look cover.
Part Number: 54-12912-C
Why choose this BMW B58 intake
- Proven gains: up to +9 bhp and +10 lb ft on the B58
- Outflows factory intake by up to 11 percent for stronger performance
- 400 CFM rating at 7 in H₂O
- Enclosed airbox design with auxiliary air inlet for cool, consistent airflow
- CAD-designed, roto-moulded intake tube for ideal flow and fit
- Pro 5R oiled, 5-layer progressively finer cotton gauze filter for maximum performance
- Vacuum-formed ABS carbon fibre look cover for a clean OEM-plus engine bay finish
- Direct bolt-on. No cutting or drilling of factory parts
What is included
- Roto-moulded intake tube, enclosed airbox and carbon fibre look cover
- 7 inch tall conical 360 degree radial flow performance air filter
- Auxiliary air inlet with optional urethane block-off plug
- All clamps, couplers and hardware for hassle-free installation
Real-world results
We run this aFe Magnum Stage-2 Pro 5R intake on our own B58 builds and our customers love the fit, finish and the way it complements software and exhaust upgrades. The carbon fibre look cover transforms the engine bay while the enclosed design outperforms open cone setups for daily road use.
Compatibility
Designed for BMW B58 3.0 turbo models, 2016 to 2019. Includes xDrive where listed. See model breakdown below:
- BMW 340i L6 3.0 Turbo B58 {F30/F31} 2016–2019
- BMW 340i GT L6 3.0 Turbo B58 {F34} 2016–2019
- BMW 340ix L6 3.0 Turbo B58 xDrive {F30/F31} 2016–2019
- BMW 340ix GT L6 3.0 Turbo B58 xDrive {F34} 2016–2019
- BMW 440i L6 3.0 Turbo B58 {F32} 2016–2019. Does not fit Convertible
- BMW 440i Gran Coupe L6 3.0 Turbo B58 {F36} 2016–2019
- BMW 440ix L6 3.0 Turbo B58 xDrive {F32} 2016–2019. Does not fit Convertible
- BMW 440ix Gran Coupe L6 3.0 Turbo B58 xDrive {F36} 2016–2019
- BMW M140i L6 3.0 Turbo B58 {F20/F22} 2016–2019
- BMW M140ix L6 3.0 Turbo B58 xDrive {F20/F22} 2016–2019
- BMW M240i L6 3.0 Turbo B58 {F22} 2016–2019. Does not fit Convertible
- BMW M240ix L6 3.0 Turbo B58 xDrive {F22} 2016–2019. Does not fit Convertible
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Key technical details
- Filter media: Pro 5R oiled 5-layer progressively finer cotton gauze
- Filter height: 7 inch conical 360 degree radial flow
- Intake tube: CAD-designed, roto-moulded for optimal flow
- Cover: vacuum-formed ABS with carbon fibre look and auxiliary air inlet
- Flow: 400 CFM at 7 in H₂O
- Install: direct bolt-on, no cutting or drilling
Fitting and installation
Direct bolt-on with basic tools. For professional fitting, choose Nforcd in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Alternative finish
Prefer a stealth style? This kit is also available in a black cover look variant.
Compatibility check before dispatch
We verify fitment before shipping. Provide your UK registration or the last 7 of your VIN at checkout so we can confirm compatibility for your BMW B58 M140i, M240i, 340i or 440i.
Manufacturer and warranty
- Manufactured by: aFe
- Warranty: 1 year
Dimensions and weight
- Dimensions: 44 cm x 33 cm x 33.5 cm
- Weight: 2.8 kg
Legal notice
This product is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicles.