{"product_id":"millway-bmw-e46-m3-porsche-boxster-s-rear-caliper-adapter-brackets-90409","title":"Millway BMW E46 M3 Porsche Boxster S Rear Caliper Adapter Brackets | 90409","description":"\u003ch2\u003eMillway Motorsport 90409 Rear Caliper Adapter Brackets for BMW E46 M3\u003c\/h2\u003e\u003cp\u003eFit compatible \u003cstrong\u003ePorsche 996 \/ 986 Boxster S rear brake calipers\u003c\/strong\u003e to the BMW E46 M3 rear axle using Millway Motorsport's dedicated lightweight machined-steel adapter brackets. Manufacturer reference \u003cstrong\u003e90409 (MW90409)\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eTechnical information\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDedicated bracket set for BMW E46 M3 rear axle\u003c\/li\u003e\n\u003cli\u003eDesigned for compatible Porsche 986\/996 Boxster S rear caliper shapes, subject to brake-system verification\u003c\/li\u003e\n\u003cli\u003eManufactured from machined steel with lightening features\u003c\/li\u003e\n\u003cli\u003eIncludes property class 12.9 mounting hardware, supplied per rear axle set\u003c\/li\u003e\n\u003cli\u003eDesigned around the standard E46 M3 rear brake disc arrangement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility warning\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBrake calipers, brake pads, brake hoses and discs are not included\u003c\/strong\u003e 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.\u003c\/p\u003e\u003ch3\u003eProfessional installation\u003c\/h3\u003e\u003cp\u003eRear 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.\u003c\/p\u003e\u003cp\u003ePrice includes UK VAT. Supplier stocks vary; UK special-order lead time may be approximately 2–3 weeks, subject to confirmation.\u003c\/p\u003e\u003cp\u003eExplore \u003ca href=\"\/collections\/millway-motorsport\"\u003eMillway Motorsport parts\u003c\/a\u003e and \u003ca href=\"\/collections\/bmw-m3-e92-e93-suspension\"\u003eBMW M chassis performance suspension\u003c\/a\u003e.\u003c\/p\u003e","brand":"Millway Motorsport","offers":[{"title":"Default Title","offer_id":67618620342662,"sku":"MW90409","price":205.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/0411\/2989\/files\/millway-90409-e46-m3-porsche-rear-caliper-brackets.jpg?v=1791896644","url":"https:\/\/www.nineteen72performance.co.uk\/products\/millway-bmw-e46-m3-porsche-boxster-s-rear-caliper-adapter-brackets-90409","provider":"Nineteen72 Performance","version":"1.0","type":"link"}