{"product_id":"milltek-maxton-diffuser-quad-outlet-bmw-1-series-128ti-5dr-f40-opf-gpf-21","title":"Milltek Maxton Diffuser Quad Outlet BMW 1 Series 128ti 5dr F40 OPF\/GPF 21+","description":"\u003ch2\u003eMilltek Maxton Diffuser Quad Outlet for BMW 1 Series 128ti 5 Door (F40 OPF\/GPF Equipped) (2021 onwards) – Genuine Milltek Fitment Part\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's diffuser for the BMW 1 Series 128ti 5 Door (F40 OPF\/GPF Equipped). It's a rear diffuser, produced in collaboration with Maxton Design, styled to complement the matching Milltek exhaust tailpipes rather than change how the exhaust itself performs.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Additional parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eGenuine Milltek part designed to work with the matching Milltek system\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 1 Series 128ti 5 Door (F40 OPF\/GPF Equipped) (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eBMW 1 Series M135i xDrive 5 Door (F40 OPF\/GPF Equipped) (2019 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e any model, engine or body style not listed above. Check your car before ordering.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eWe recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-gpf-opf-bypass-bmw-1-series-128ti-5dr-f40-opf-gpf-21\"\u003eMilltek GPF\/OPF Bypass BMW 1 Series 128ti 5dr F40 OPF\/GPF 21+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-filter-back-exhaust-bmw-1-series-128ti-5dr-f40-opf-gpf-21\"\u003eMilltek Filter-back Exhaust BMW 1 Series 128ti 5dr F40 OPF\/GPF 21+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the BMW 1 Series M135i xDrive 5 Door (F40 OPF\/GPF Equipped)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the BMW 1 Series M135i xDrive 5 Door (F40 OPF\/GPF Equipped) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eMilltek does not list EC approval for this part. Any exhaust used on the road must still meet noise and emissions rules, so check the requirements where you live.\u003c\/p\u003e\n\u003ch3\u003eWhat does it work with?\u003c\/h3\u003e\n\u003cp\u003eMilltek notes: \"Maxton Diffuser for Quad Outlet System (M2 Style) - Gloss\". Check this matches your current exhaust before ordering.\u003c\/p\u003e\n\u003ch3\u003eIs this a complete exhaust system?\u003c\/h3\u003e\n\u003cp\u003eNo. It is designed to be used with the system or factory parts described above, rather than as a complete exhaust on its own.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392759214465,"sku":"MIL-SSXBM1242","price":214.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXBM1242_1.jpg?v=1791891907","url":"https:\/\/milltekexhaustshop.com\/products\/milltek-maxton-diffuser-quad-outlet-bmw-1-series-128ti-5dr-f40-opf-gpf-21","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}