Custom 3 D Printed Brake Cooling Air Ducts – Left & Right Pair
Designed for non-M BMW 3 Series vehicles fitted with an E90 M3 front bumper, these custom-made air intake ducts provide a practical way to direct cooling air from the bumper's fog light area towards the brakes.
Ideal for anyone carrying out an M3 front bumper conversion who wants to make use of the bumper openings to provide functional brake cooling airflow.
The ducts are designed to fit into the inner wheel arch area and can be drilled and bolted into position or bonded using a suitable automotive adhesive such as Tiger Seal, depending on your preferred installation method.
Supplied as a pair – 2 brake air intake ducts
Material: PETG plastic
Colour: Black
Manufacturing: 3 D printed
Hose connection: Designed for 63mm flexible ducting
Purpose: Directs air from the M3 bumper openings towards the original brake cooling inlets
Custom designed: For M3 front bumper conversions on non-M BMW 3 Series vehicles
Designed for non-M BMW 3 Series vehicles fitted with an E90 M3 front bumper.
NOT suitable for the BMW 335i due to intercoolers.
These ducts have been successfully customer-fitted to a 2006 BMW E90 320d with an M3 front bumper.
Fitment on other models and bumper conversions may vary. Please check the technical drawing and dimensions provided in the listing photographs before purchasing.
The circular end of each duct faces forwards, towards the M3 bumper opening.
The ducts are positioned in the inner wheel arch area and can be secured by drilling and bolting or by bonding with a suitable automotive adhesive such as Tiger Seal.
A 63mm flexible air hose can be directed to the original inlet areas, allowing air to be channelled towards the brakes.
Please note:
63mm flexible hose is NOT included and must be purchased separately.
Fog light trim / mesh is NOT included. Some M3 bumpers may not be supplied with these components.
This listing is for the two brake cooling ducts only, as shown in the product photographs.
Mounting bolts, adhesive and other installation accessories are not included.
Please refer to the technical drawing in the listing photographs for the duct dimensions and measurements.
These ducts are custom manufactured using PETG filament and a 3D printing process.
Visible print layer lines and minor surface imperfections are normal and are part of the manufacturing process.
Dimensions are approximate due to 3D printing tolerances.
These are aftermarket custom-made components, not genuine BMW parts.
Some fitting and adjustment may be required depending on your bumper conversion and installation.
2 × Black PETG brake air intake ducts (one pair)
Not included: 63mm flexible hose, fog light trim / mesh, mounting hardware or adhesive.
A simple, practical solution for making use of the brake cooling openings when fitting an E90 M3 front bumper to a non-M BMW 3 Series.