{"product_id":"genuine-bmw-b47-f30-f32-f36-m-performance-active-sound-silencer-muffler-exhaust-system-without-tips-318d-320d-418d-420d","title":"Genuine BMW M Performance B47 Diesel Active Sound Sport Exhaust Back Box\/Muffler Rear Silencer (Axle-Back) F30 F31 F32 F33 F36 3 \u0026 4 Series 318d 320d 418d 420d xDrive | OEM Rear Section No Tips | PN 18302407193","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \n  \u003ch2\u003eBMW B47 F3x Active Sound Backbox - Genuine M Performance Rear Section without Tail Trims - Part No. 18302407193\u003c\/h2\u003e\n  \n  \u003cp\u003e\n    Give your 3 Series or 4 Series diesel the soundtrack it deserves with BMW’s factory-developed Active Sound rear section for B47 engines. This genuine M Performance backbox delivers a deeper, more purposeful tone while keeping long‑journey refinement. In ECO PRO it stays calm, in Comfort it adds a tasteful growl, and in Sport it brings a richer, more engaging note for those weekend blasts.\n  \u003c\/p\u003e\n  \n  \u003cp\u003e\n    We have installed and run this system ourselves at MJ Modifications, and customer feedback has been consistently excellent. Expect a premium OEM+ feel, perfect fitment and a quality sound character that complements daily driving and spirited use alike.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eWhy this factory sport backbox stands out\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthentic BMW M Performance rear section for precise fit and finish\u003c\/li\u003e\n    \u003cli\u003eDrive mode linked sound character - quiet when you want it, assertive when you do\u003c\/li\u003e\n    \u003cli\u003eEngineered specifically for B47 four-cylinder diesel applications on the F3x platform\u003c\/li\u003e\n    \u003cli\u003eOEM reliability and integration - the right choice for an upgrade that feels factory\u003c\/li\u003e\n    \u003cli\u003eAxle-back design enhances tone without compromising day-to-day usability\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e Active Sound rear box assembly only. \u003cstrong\u003eTailpipe trims are not included\u003c\/strong\u003e and are available separately.\u003c\/p\u003e\n  \n  \u003ch3\u003eCompatibility - diesel models only\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW 3 Series F30 LCI Saloon 2014-2018\n      \u003cul\u003e\n        \u003cli\u003e318d, 318dx, 320d, 320d ed, 320dx\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003eBMW 3 Series F31 LCI Touring 2014-2019\n      \u003cul\u003e\n        \u003cli\u003e318d, 318dx, 320d, 320d ed, 320dx\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003eBMW 4 Series F32 Coupe 2014-2017 and F32 LCI 2016-2019\n      \u003cul\u003e\n        \u003cli\u003e418d, 420d, 420dx\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003eBMW 4 Series F33 Convertible 2014-2017 and F33 LCI 2016-2019\n      \u003cul\u003e\n        \u003cli\u003e420d\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n    \u003cli\u003eBMW 4 Series F36 Gran Coupe 2014-2017 and F36 LCI 2016-2019\n      \u003cul\u003e\n        \u003cli\u003e418d, 420d, 420dx\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cstrong\u003eNot for petrol models.\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eFitting and support\u003c\/h3\u003e\n  \u003cp\u003e\n    Professional installation is recommended. For expert fitting, choose \u003cstrong\u003eMJ Modifications\u003c\/strong\u003e in Warwickshire. Request a fitting quote at \n    \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eCompatibility check before dispatch\u003c\/h3\u003e\n  \u003cp\u003e\n    We will verify fitment before shipping. Please provide your UK registration or the last 7 of your VIN at checkout to ensure you receive the correct part.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003e18302407193\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eManufactured by\u003c\/h3\u003e\n  \u003cp\u003eBMW - Genuine M Performance Parts.\u003c\/p\u003e\n  \n  \u003ch3\u003eWarranty\u003c\/h3\u003e\n  \u003cp\u003e\n    Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a valid VIN is supplied at checkout on compatible vehicles.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eImportant notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eThis listing is for the Active Sound backbox only. \u003cstrong\u003eTailpipe tips are sold separately.\u003c\/strong\u003e\n\u003c\/li\u003e\n    \u003cli\u003eDesigned for diesel vehicles listed above.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eSearch-friendly terms customers use\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW B47 backbox, F30 rear box upgrade, F31 axle-back, F32 sports back box, F33 diesel backbox, F36 Gran Coupe rear section, 318d back box upgrade, 320d sound upgrade, 420d sport rear box, B47 Active Sound backbox, diesel sound upgrade, factory sport exhaust rear section, OEM+ rear silencer, performance backbox, BMW xDrive diesel rear box, F3x diesel sound enhancer, BMW tail silencer, BMW axle back system, BMW diesel sound booster, BMW M Performance rear section.\n  \u003c\/p\u003e\n  \n\u003c\/div\u003e","brand":"BMW","offers":[{"title":"Default Title","offer_id":55975857848706,"sku":null,"price":1658.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/GENUINEBMWB47F30F32F36MPERFORMANCEACTIVESOUNDSILENCERMUFFLEREXHAUSTSYSTEMWITHOUTTIPS_318D_320D_418D_420D_1946x_6da83304-32d6-4a8f-aef5-ddc17c41fd7f_1024x1024_2x-transformed.webp?v=1763323013","url":"https:\/\/mjmodifications.co.uk\/products\/genuine-bmw-b47-f30-f32-f36-m-performance-active-sound-silencer-muffler-exhaust-system-without-tips-318d-320d-418d-420d","provider":"MJ Modifications","version":"1.0","type":"link"}