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BMW E36/E46 Large Aero Diffuser in Carbon Composite

BMW E36/E46 Large Aero Diffuser in Carbon Composite


BMW E36/E46 Large Aero Diffuser in Carbon Composite

The Aero Diffuser is supplied as a complete figure, with no pre cut holes for the exhaust. This enables you to cut to fit your car. Please contact us if you would like a quote to install.

Why buy an Aero Diffuser? Because it not only looks amazing, it also improves the aerodynamics and handling of your car.

The diffuser accelerates the flow of air under the car thus increases downforce and improves aerodynamic grip.

Its tried and tested by our own Geoff Steel Racing Team, who with the diffuser achieved much higher levels of grip than when relying on tyres and suspension alone.

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  • Material: Carbon Composite
  • Weight: 6kgs Approx.
  • Colours: Available in black or white gel coat or carbon weave
  • Price: £650
  • Availability: Manufacture to distribution approx. 1 to 4 weeks. (Please contact us directly if you require parts by a specific date as we will always endeavour to meet requirements)


As all Geoff Steel Carbon products are bespoke hand laid pieces, you are advised that minor adjustments may be required at the time of installation.

Where holes are required, as standard we leave this blank, so on installation they can be drilled once in position.

Due to the nature of the material used in all carbon fibre and fibreglass products, it is of upmost importance to not only store items correctly (i.e. weight/pressure spread evenly) but on receipt of the items fit them as soon as possible. Incorrect storage can lead to items becoming misshaped thus creating a problem when fitting.

If you are unsure about how to fit your Geoff Steel Carbon products, then please feel free to contact us directly (see Contact) for advice. If you are in the UK we can quote to fit the products, otherwise any competent car body shop would be able to undertake this task.


Geoff Steel Carbon products are designed and manufactured for use on track cars only. Any use on highways is at own risk.

Additional information

Weight10 kg
Dimensions130 × 150 × 40 cm

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G S Fibre Limited | Station Road | Kirton Lindsey | Gainsborough | DN21 4BD | UK

Company no. 09242565

Registered office address
G G Steel, Station Road, Kirton Lindsey, North Lincolnshire, DN21 4BD

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