{"product_id":"dinan-free-flow-exhaust-with-black-tips-for-bmw-e82-e88-135i-2008-2013","title":"Dinan Free Flow Axle-Back Exhaust with Twin Black Tips for BMW 1 Series E82\/E88 135i 135is (2008-2013) – Performance Back Box Stainless Rear Silencer\/Muffler Upgrade N54\/N55 UK","description":"\u003cdiv class=\"product-description\"\u003e\n  \u003cp\u003e\n    Unlock a richer soundtrack and sharper response from your 1 Series with this premium rear section from Dinan. Engineered for the E82 coupé and E88 cabriolet, it replaces the factory back box with a freer-breathing, straight-through design that lets your six sing without turning every commute into a drone-fest. The result is a deeper, more purposeful tone under load and a refined, comfortable character at a steady cruise.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Built entirely from high-grade stainless steel for long-term durability in UK conditions, this system uses the original mounting points for an easy, hassle-free, bolt-on install. The twin black tailpipe finishers deliver a stealthy, motorsport look that suits the 1er perfectly, while the optimised internals reduce restriction to help the engine rev more cleanly and feel more eager throughout the rev range.\n  \u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003ePerformance rear section \/ axle-back upgrade for BMW 1 Series 135i and 135is\u003c\/li\u003e\n    \u003cli\u003eStainless construction for excellent corrosion resistance and longevity\u003c\/li\u003e\n    \u003cli\u003eTwin matte black tailpipe finishers for a subtle, aggressive aesthetic\u003c\/li\u003e\n    \u003cli\u003eDirect-fit using OEM hangers and hardware for straightforward installation\u003c\/li\u003e\n    \u003cli\u003eLower restriction for improved gas flow and a sportier, deeper exhaust note\u003c\/li\u003e\n    \u003cli\u003eLighter than the OE back box to help trim unnecessary weight\u003c\/li\u003e\n    \u003cli\u003eGenuine Dinan quality with precise fitment and OE-level refinement\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    Compatibility: BMW 1 Series E82 (coupé) and E88 (convertible) 135i, model years 2008–2013, plus 135is (2013). Ideal search terms include BMW 135i performance exhaust UK, E82 sports back box, E88 axle-back system, 1 Series 135is muffler upgrade, twin tailpipe black tips.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Why buy from MJ Modifications: we’ve installed this system on customer cars and our own builds, and the feedback is consistently positive — great tone, quality fit, and a premium finish. As an enthusiast-led UK supplier, we offer quick dispatch and knowledgeable support.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Professional fitting available: book installation with MJ Modifications in Warwickshire. Email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e for a tailored quote.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Performance M","offers":[{"title":"Default Title","offer_id":55975106806146,"sku":"n6apugb6e2","price":1623.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/D660-0025-BLK__46549.1535040901.png?v=1763320479","url":"https:\/\/mjmodifications.co.uk\/products\/dinan-free-flow-exhaust-with-black-tips-for-bmw-e82-e88-135i-2008-2013","provider":"MJ Modifications","version":"1.0","type":"link"}