Millway BMW E46 M3 Porsche Boxster S Rear Caliper Adapter Brackets | 90409
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Description
Millway Motorsport 90409 Rear Caliper Adapter Brackets for BMW E46 M3
Fit compatible Porsche 996 / 986 Boxster S rear brake calipers to the BMW E46 M3 rear axle using Millway Motorsport's dedicated lightweight machined-steel adapter brackets. Manufacturer reference 90409 (MW90409).
Technical information
- Dedicated bracket set for BMW E46 M3 rear axle
- Designed for compatible Porsche 986/996 Boxster S rear caliper shapes, subject to brake-system verification
- Manufactured from machined steel with lightening features
- Includes property class 12.9 mounting hardware, supplied per rear axle set
- Designed around the standard E46 M3 rear brake disc arrangement
Compatibility warning
Brake calipers, brake pads, brake hoses and discs are not included unless explicitly specified. Confirm exact Porsche caliper casting, disc dimensions, handbrake clearance, correct hydraulic hose routing, wheel clearance and all required hardware before purchasing. Not approved as a universal 986/996 brake conversion or for other BMW chassis.
Professional installation
Rear brake conversions are safety-critical, require specialist installation and may require road-use compliance approval. The finished brakes must be leak-tested and inspected before use.
Price includes UK VAT. Supplier stocks vary; UK special-order lead time may be approximately 2–3 weeks, subject to confirmation.
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More information
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Warranty, Shipping and Returns
Products are supplied with the applicable manufacturer warranty. We offer UK and worldwide shipping. Please refer to the live availability information and our shipping and returns policies before ordering. Contact us if you need to confirm compatibility, intended use or any product-specific conditions.
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Specifications
- Brand
- Millway Motorsport
- Product type
- Brake Caliper Brackets
- SKU:
- MW90409
- Vehicle make
- BMW
- Vehicle model
- M3
- Vehicle variant
- E46
Need help?
Product questions answered
Helpful answers before you order. Need more detail? Our team can help.
Which brake specification do I need?
Confirm the axle, fitted caliper and disc dimensions against the listing. Different factory brake packages can be fitted to the same model. If you are unsure, send us your vehicle details and photographs of the current brakes before ordering.
How do I choose between road and track options?
Tell us whether the car is used on the road, for occasional track days or for competition. Check the stated compound or product specification, and any usage restrictions in the listing. We can help you compare the available options for your intended use.
When will my order arrive?
Select your required option and check the live availability message above. Dispatch is when your order leaves us; delivery takes additional time and depends on the service and destination. If no verified lead time is shown, or you need the item for a fitting appointment or event, contact Nineteen72 Performance before ordering.
What is included in the price?
Check the product description, selected option and stated quantity before ordering. Images may show optional equipment or an example installation. If you need a matching pair, a complete kit or additional hardware, ask us to confirm exactly what is included.
How do I get help before ordering?
Contact Nineteen72 Performance with a link to this product and your question. For vehicle-specific parts, include your model, year, engine and any modifications that may affect compatibility.
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