{"product_id":"milltek-filter-back-exhaust-bmw-3-series-g20-g21-m340i-xdrive-saloon-touring-opf-gpf-pre-lci-19-25","title":"Milltek Filter Back Exhaust BMW 3 Series G20 G21 M340i XDrive Saloon Touring OPF\/GPF Pre LCI 19-25","description":"\u003ch2\u003eMilltek Filter-back Exhaust for BMW 3 Series G20 \u0026amp; G21 M340i XDrive Saloon \u0026amp; Touring Models (OPF\/GPF Models Only) Pre LCI (2019-2025) – Sharper Sound, Filter Retained\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's particulate filter-back system for the BMW 3 Series G20 \u0026amp; G21 M340i XDrive Saloon \u0026amp; Touring Models (OPF\/GPF Models Only) Pre LCI. It replaces everything downstream of the factory diesel or petrol particulate filter with wider-bore pipework and re-tuned silencers, cutting back pressure and sharpening the exhaust note. The filter itself is left exactly where the manufacturer fitted it, so emissions equipment is unaffected. It's offered in 2 tailpipe finishes, so you can pick the setup that suits how the car's used.\u003c\/p\u003e\n\u003cp\u003eIt's the right choice if you want a sportier sound and a genuine, if modest, flow improvement on a filter-equipped car, without going anywhere near the parts of the system that keep it emissions-compliant.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Particulate Filter-back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 76.2mm (3\")\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. 2 to 2.5 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\u003e76.2mm (3\") pipework\u003c\/li\u003e\n\u003cli\u003eFits behind the factory particulate filter, which stays in place\u003c\/li\u003e\n\u003cli\u003eChoice of 2 tailpipe finishes: GT-100 Black, GT-100 Polished\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 G20 \u0026amp; G21 M340i XDrive Saloon \u0026amp; Touring Models (OPF\/GPF Models Only) Pre LCI (2019-2025)\u003c\/li\u003e\n\u003cli\u003eBMW 3 Series G20 M340i Sedan inc Xdrive (North American\/ROW Models Only) Pre LCI (2021-2025)\u003c\/li\u003e\n\u003cli\u003eBMW 4 Series G22 M440i Coupe (NAS\/ROW Vehicles Only) Pre LCI (2021-2025)\u003c\/li\u003e\n\u003cli\u003eBMW 4 Series G22 M440i Coupe (OPF\/GPF Equipped Models Only) Pre LCI (2020-2025)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the BMW 3 Series G80 M3 \u0026amp; M3 Competition S58 3.0 Turbo (North American\/ROW Non-OPF\/GPF Cars Only), which needs the \u003ca href=\"\/products\/milltek-filter-back-exhaust-bmw-3-series-g80-g81-m3-comp-s58-3-0-turbo-opf-gpf-touring-xdrive-20\"\u003eMilltek Filter-back Exhaust BMW 3 Series G80 \u0026amp; G81 M3 \u0026amp; M3 Comp S58 3.0 Turbo OPF\/GPF Touring \u0026amp; XDrive 20+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 2 to 2.5 hours. Some versions: OPF\/GPF Back, fits to OE Trims (Requires OE System to be Cut) - ECE R59 Approved. Some versions: OPF\/GPF Back, with Quad Black GT-100 Black Trims (Requires OE System to be Cut) - ECE R59 Approved. Some versions: OPF\/GPF Back, with Quad GT-100 Polished Trims (Requires OE System to be Cut) - ECE R59 Approved. 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\u003eWhich tailpipe finishes are available?\u003c\/h3\u003e\n\u003cp\u003eYou can choose from: GT-100 Black, GT-100 Polished. The finish is cosmetic and does not change the sound.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the BMW 3 Series G20 M340i Sedan inc Xdrive (North American\/ROW Models Only) Pre LCI?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the BMW 3 Series G20 M340i Sedan inc Xdrive (North American\/ROW Models Only) Pre LCI as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the BMW 3 Series G80 M3 \u0026amp; M3 Competition S58 3.0 Turbo (North American\/ROW Non-OPF\/GPF Cars Only)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-filter-back-exhaust-bmw-3-series-g80-g81-m3-comp-s58-3-0-turbo-opf-gpf-touring-xdrive-20\"\u003eMilltek Filter-back Exhaust BMW 3 Series G80 \u0026amp; G81 M3 \u0026amp; M3 Comp S58 3.0 Turbo OPF\/GPF Touring \u0026amp; XDrive 20+\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 particulate filter, so no software changes are needed.\u003c\/p\u003e\n\u003ch3\u003eDoes it keep the factory particulate filter?\u003c\/h3\u003e\n\u003cp\u003eYes. It fits behind the factory particulate filter, which stays in place.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 2 to 2.5 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":"Fits OE System","offer_id":56392771600769,"sku":"MIL-SSXBM1157","price":1471.16,"currency_code":"GBP","in_stock":true},{"title":"GT-100 Black","offer_id":56392771633537,"sku":"MIL-SSXBM1159","price":1991.91,"currency_code":"GBP","in_stock":true},{"title":"GT-100 Polished","offer_id":56392771666305,"sku":"MIL-SSXBM1158","price":1816.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXBM1157_1.jpg?v=1791892237","url":"https:\/\/milltekexhaustshop.com\/products\/milltek-filter-back-exhaust-bmw-3-series-g20-g21-m340i-xdrive-saloon-touring-opf-gpf-pre-lci-19-25","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}