{"product_id":"genuine-bmw-m-performance-silencer-muffler-exhaust-without-tips-1-series-f20-f21-m135i-m135ix-n55","title":"Genuine BMW M Performance Axle-Back Rear Silencer\/Muffler Back Box\/Tailbox Sport Exhaust for 1 Series F20 F21 M135i \u0026 M135i xDrive (M135iX) N55 – OEM Rear Section, No Tips – 18302349989","description":"\u003cdiv\u003e\n  \u003ch2\u003eAuthentic BMW M Performance Rear Section for 1 Series M135i N55 – Axle‑Back Tail Silencer\u003c\/h2\u003e\n\n  \u003cp\u003e\n    Give your turbocharged straight six the voice it deserves. This authentic BMW M Performance rear section transforms the soundtrack of the N55-powered 1 Series while keeping everyday refinement intact. It is the genuine axle-back tail silencer designed for the F20 and F21 M135i, including xDrive, delivering a richer tone, sharper character and perfect original-equipment fit.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    We have fitted this unit many times in our own workshop and customer feedback has been outstanding. Expect a deeper, motorsport-inspired note outside the car with minimal cabin boom on the motorway, plus the reliability and longevity you only get from an OEM BMW performance part.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhy enthusiasts choose this upgrade\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthentic BMW performance rear section for the N55 straight six\u003c\/li\u003e\n    \u003cli\u003eDeeper, more characterful tone without intrusive drone\u003c\/li\u003e\n    \u003cli\u003eOptimised flow helps the engine breathe more freely\u003c\/li\u003e\n    \u003cli\u003eHigh grade stainless steel for durability and corrosion resistance\u003c\/li\u003e\n    \u003cli\u003ePrecision OE tolerances for a direct swap with factory hangers and mounts\u003c\/li\u003e\n    \u003cli\u003eAxle-back layout for easy installation and reversible originality\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat you receive\u003c\/h3\u003e\n  \u003cp\u003e\n    Rear silencer assembly only. Tailpipe finishers are not included. Genuine BMW carbon or chrome tips can be purchased separately for a premium factory look.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW 1 Series F20 M135i – N55 six-cylinder\u003c\/li\u003e\n    \u003cli\u003eBMW 1 Series F21 M135i – N55 six-cylinder\u003c\/li\u003e\n    \u003cli\u003eIncludes xDrive and M135iX all-wheel drive variants\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\n    If you are unsure, we will verify fitment before dispatch. Provide your UK registration or the last 7 characters of your VIN at checkout.\n  \u003c\/p\u003e\n\n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003e18302349989\u003c\/strong\u003e\u003c\/p\u003e\n\n  \u003ch3\u003eManufactured by\u003c\/h3\u003e\n  \u003cp\u003eBMW M Performance – Genuine BMW Parts\u003c\/p\u003e\n\n  \u003ch3\u003eFitting and installation\u003c\/h3\u003e\n  \u003cp\u003e\n    Professional installation is recommended. MJ Modifications in Warwickshire offers full fitting services and setup. Request a quote at \n    \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWarranty\u003c\/h3\u003e\n  \u003cp\u003e\n    Two-year manufacturer warranty for UK customers and one-year manufacturer warranty for international customers when a compatible VIN is supplied.\n  \u003c\/p\u003e\n\n  \u003ch3\u003ePopular searches this product answers\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW 1 Series M135i rear box upgrade, F20 M135i tailbox, F21 M135i sports silencer, N55 axle-back system, M135i xDrive rear section, OEM performance exhaust for M135i, factory BMW tail silencer, N55 straight six sound upgrade, M135ix AWD exhaust rear section, BMW 1 Series performance tailpipe box, original equipment rear can for M135i, performance rear silencer for N55B30, BMW 1 Series hot hatch exhaust upgrade.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eThe MJ Modifications difference\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eWe have installed this rear section on multiple customer cars with consistently positive results\u003c\/li\u003e\n    \u003cli\u003eHonest advice, proven fitment and aftercare from a specialist who knows the platform\u003c\/li\u003e\n    \u003cli\u003eOptional pairing with genuine BMW tailpipe finishers for a complete OEM+ look\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"BMW","offers":[{"title":"Default Title","offer_id":55975964901762,"sku":null,"price":1115.74,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/GENUINE_BMW_M_PERFORMANCE_SILENCER_MUFFLER_EXHAUST_WITHOUT_TIPS_1_SERIES_F20_F21_M135I_M135IX_N55_1946x_7021a9bf-516b-4a6c-aa96-828bc6139dfd.jpg?v=1763324442","url":"https:\/\/mjmodifications.co.uk\/products\/genuine-bmw-m-performance-silencer-muffler-exhaust-without-tips-1-series-f20-f21-m135i-m135ix-n55","provider":"MJ Modifications","version":"1.0","type":"link"}