{"product_id":"milltek-axle-back-exhaust-bmw-3-series-g80-g81-m3-comp-s58-3-0-turbo-opf-gpf-inc-touring-xdrive-20","title":"Milltek Axle Back Exhaust BMW 3 Series G80 G81 M3 Comp S58 3.0 Turbo OPF\/GPF inc Touring XDrive 20+","description":"\u003ch2\u003eMilltek Axle Back Exhaust for BMW 3 Series G80 M3 \u0026amp; M3 Competition S58 3.0 Turbo (North American\/ROW Non-OPF\/GPF Cars Only) (2021 onwards) – Sportier Note, Simple Fitment\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's axle-back exhaust for the BMW 3 Series G80\/G81 M3 \u0026amp; M3 Competition S58 3.0 Turbo (OPF\/GPF Equipped Cars Only) inc Touring \u0026amp; XDrive Models. It replaces the exhaust from the rear axle back, the shortest section Milltek offers on this platform, swapping the factory tail section for wider-bore pipework and a silencer tuned for a sportier note. Everything ahead of the rear axle, including the mid-pipe, stays standard. It's offered in 5 tailpipe finishes, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's the option for a subtle, tail-end-only change in sound and look, rather than the fuller transformation of a cat-back or front-pipe-back system.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Axle Back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 80mm (3.15\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 1.5 to 2 hours (Milltek figure)\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\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e80mm (3.15\") pipework\u003c\/li\u003e\n\u003cli\u003eReplaces the rear section only; everything ahead of the rear axle stays standard\u003c\/li\u003e\n\u003cli\u003eChoice of 5 tailpipe finishes: GT-115 Brushed Titanium, GT-115 Burnt Titanium, GT-115 Cerakote Black, GT-115 Polished, JET-115 Carbon Fibre\u003c\/li\u003e\n\u003cli\u003eEC approved\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 3 Series G80 M3 \u0026amp; M3 Competition S58 3.0 Turbo (North American\/ROW Non-OPF\/GPF Cars Only) (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eBMW 3 Series G80\/G81 M3 \u0026amp; M3 Competition S58 3.0 Turbo (OPF\/GPF Equipped Cars Only) inc Touring \u0026amp; XDrive Models (2020 onwards)\u003c\/li\u003e\n\u003cli\u003eBMW 4 Series G82 M4 \u0026amp; M4 Competition S58 3.0 Turbo (North American\/ROW Non-OPF\/GPF Cars Only) (2021 onwards)\u003c\/li\u003e\n\u003cli\u003eBMW 4 Series G82 M4 \u0026amp; M4 Competition S58 3.0 Turbo (OPF\/GPF Equipped Cars Only) (2020 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the BMW 3 Series G20 \u0026amp; G21 M340i XDrive Saloon \u0026amp; Touring Models (OPF\/GPF Models Only) Pre LCI, which needs the \u003ca href=\"\/products\/milltek-filter-back-exhaust-bmw-3-series-g20-g21-m340i-xdrive-saloon-touring-opf-gpf-pre-lci-19-25\"\u003eMilltek Filter-back Exhaust BMW 3 Series G20 G21 M340i XDrive Saloon Touring OPF\/GPF Pre LCI 19-25\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 1.5 to 2 hours. Some versions: Axle Back System with GT-115 Brushed Titanium Trims - ECE Approved (OE Requires Cutting). Some versions: Axle Back System with GT-115 Burnt Titanium Trims - ECE Approved (OE Requires Cutting). Some versions: Axle Back System with GT-115 Cerakote Black Trims - ECE Approved (OE Requires Cutting). Some versions: Axle Back System with GT-115 Polished Trims - ECE Approved (OE Requires Cutting). We 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-secondary-catalyst-bypass-bmw-3-series-g80-m3-comp-s58-3-0-turbo-na-row-non-opf-gpf-21\"\u003eMilltek Secondary Catalyst Bypass BMW 3 Series G80 M3 \u0026amp; M3 Comp S58 3.0 Turbo (North American \u0026amp; ROW Non-OPF\/GPF Cars Only) 21+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-gpf-opf-bypass-bmw-3-series-g80-g81-m3-comp-s58-3-0-turbo-opf-gpf-inc-touring-xdrive-20\"\u003eMilltek GPF\/OPF Bypass BMW 3 Series G80 \u0026amp; G81 M3 \u0026amp; M3 Comp S58 3.0 Turbo OPF\/GPF inc Touring \u0026amp; XDrive 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhich tailpipe finishes are available?\u003c\/h3\u003e\n\u003cp\u003eYou can choose from: GT-115 Brushed Titanium, GT-115 Burnt Titanium, GT-115 Cerakote Black, GT-115 Polished, JET-115 Carbon Fibre. The finish is cosmetic and does not change the sound.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the BMW 3 Series G80\/G81 M3 \u0026amp; M3 Competition S58 3.0 Turbo (OPF\/GPF Equipped Cars Only) inc Touring \u0026amp; XDrive Models?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the BMW 3 Series G80\/G81 M3 \u0026amp; M3 Competition S58 3.0 Turbo (OPF\/GPF Equipped Cars Only) inc Touring \u0026amp; XDrive Models as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the BMW 3 Series G20 \u0026amp; G21 M340i XDrive Saloon \u0026amp; Touring Models (OPF\/GPF Models Only) Pre LCI?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-filter-back-exhaust-bmw-3-series-g20-g21-m340i-xdrive-saloon-touring-opf-gpf-pre-lci-19-25\"\u003eMilltek Filter-back Exhaust BMW 3 Series G20 G21 M340i XDrive Saloon Touring OPF\/GPF Pre LCI 19-25\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eEvery version of this part is listed by Milltek as EC approved.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eNo. It fits behind the factory catalytic converter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 1.5 to 2 hours.\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":"GT-115 Brushed Titanium","offer_id":56392772911489,"sku":"MIL-SSXBM1171","price":3134.66,"currency_code":"GBP","in_stock":true},{"title":"GT-115 Burnt Titanium","offer_id":56392772944257,"sku":"MIL-SSXBM1172","price":3260.95,"currency_code":"GBP","in_stock":true},{"title":"GT-115 Cerakote Black","offer_id":56392772977025,"sku":"MIL-SSXBM1170","price":2895.17,"currency_code":"GBP","in_stock":true},{"title":"GT-115 Polished","offer_id":56392773009793,"sku":"MIL-SSXBM1169","price":2605.7,"currency_code":"GBP","in_stock":true},{"title":"JET-115 Carbon Fibre","offer_id":56392773042561,"sku":"MIL-SSXBM1173","price":3193.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXBM1171_1_09ffe9f1-8f6d-40d1-aedd-8c356ce6cc81.jpg?v=1791892277","url":"https:\/\/milltekexhaustshop.com\/products\/milltek-axle-back-exhaust-bmw-3-series-g80-g81-m3-comp-s58-3-0-turbo-opf-gpf-inc-touring-xdrive-20","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}