{"product_id":"milltek-gpf-opf-bypass-bmw-5-series-m5-comp-4-4-twin-turbo-f90-lci-opf-gpf-21","title":"Milltek GPF\/OPF Bypass BMW 5 Series M5 Comp 4.4 Twin Turbo F90 LCI OPF\/GPF 21+","description":"\u003ch2\u003eMilltek GPF\/OPF Bypass for BMW 5 Series M5 \u0026amp; M5 Competition 4.4l Twin Turbo F90 LCI (OPF\/GPF Equipped Cars) (2021 onwards) – Filter Delete, Motorsport Use\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's GPF\/OPF bypass pipe for the BMW 5 Series M5 \u0026amp; M5 Competition 4.4l Twin Turbo F90 LCI (OPF\/GPF Equipped Cars). It replaces the section of pipe housing the factory petrol particulate filter with a straight-through pipe, clearing the last major restriction left in a modern turbocharged petrol exhaust once a de-cat and remap are already in place.\u003c\/p\u003e\n\u003cp\u003eIt's aimed at owners already running a de-cat and a supporting remap who want to clear the final restriction in the system, not a bolt-on for a car that needs to stay road legal.\u003c\/p\u003e\n\u003cp\u003eBecause it removes the particulate filter, it's intended for off-road and competition use. A car with the GPF\/OPF removed will fail an MOT emissions test and isn't legal to use on UK roads.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e GPF\/OPF Bypass\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 No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 3 to 3.5 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\u003e80mm (3.15\") pipework\u003c\/li\u003e\n\u003cli\u003eStraight-through pipe in place of the factory petrol particulate filter (off-road and competition use only)\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\u003cli\u003eBMW 5 Series M5 \u0026amp; M5 Competition 4.4l Twin Turbo F90 LCI (OPF\/GPF Equipped Cars) (2021 onwards)\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the BMW 5 Series M5 \u0026amp; M5 Competition 4.4l Twin Turbo F90 (Non OPF\/GPF Cars), which needs the \u003ca href=\"\/products\/milltek-gpf-opf-bypass-bmw-5-series-m5-comp-4-4-twin-turbo-f90-opf-gpf-20-21\"\u003eMilltek GPF\/OPF Bypass BMW 5 Series M5 \u0026amp; M5 Comp 4.4l Twin Turbo F90 OPF\/GPF 20-21\u003c\/a\u003e; the BMW 5 Series M5 4.4l Twin Turbo Hybrid G90 \u0026amp; G99 (UK\/European Spec Vehicles), which needs the \u003ca href=\"\/products\/milltek-gpf-opf-bypass-bmw-5-series-m5-4-4-twin-turbo-hybrid-g90-g99-uk-eu-spec-25\"\u003eMilltek GPF\/OPF Bypass BMW 5 Series M5 4.4l Twin Turbo Hybrid G90 \u0026amp; G99 UK \u0026amp; European Spec Vehicles 25+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 3 to 3.5 hours. Before ordering, note: Fits to the OE Downpipes and OE OPF\/GPF Back System. - For Vehicles with Flange Connection to OE Downpipes - Requires Stage 2 ECU Remap or OPF\/GPF Bypass Module (Available from www.leib-engineering.de). This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-cat-back-exhaust-bmw-5-series-m5-comp-4-4-twin-turbo-f90-lci-opf-gpf-21\"\u003eMilltek Cat-back Exhaust BMW 5 Series M5 \u0026amp; M5 Comp 4.4l Twin Turbo F90 LCI OPF\/GPF 21+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the BMW 5 Series M5 \u0026amp; M5 Competition 4.4l Twin Turbo F90 (Non OPF\/GPF Cars)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-gpf-opf-bypass-bmw-5-series-m5-comp-4-4-twin-turbo-f90-opf-gpf-20-21\"\u003eMilltek GPF\/OPF Bypass BMW 5 Series M5 \u0026amp; M5 Comp 4.4l Twin Turbo F90 OPF\/GPF 20-21\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eNo. Removing the particulate filter means the car will fail an MOT emissions test, so it is for off-road and competition use only.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eA suitable remap is strongly recommended, as the engine management needs to account for the change in flow and sensor readings. Speak to your tuner before fitting.\u003c\/p\u003e\n\u003ch3\u003eCan I use it with my standard exhaust?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists it for use with the factory (OE) exhaust system.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 3 to 3.5 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":"Default Title","offer_id":56392783069569,"sku":"MIL-SSXBM1226","price":1673.69,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXBM1226_1.jpg?v=1791892431","url":"https:\/\/milltekexhaustshop.com\/products\/milltek-gpf-opf-bypass-bmw-5-series-m5-comp-4-4-twin-turbo-f90-lci-opf-gpf-21","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}