{"product_id":"milltek-sport-gpf-back-exhaust-land-rover-defender-octa-4-4-v8","title":"Milltek Sport GPF Back Exhaust – Land Rover Defender OCTA 4.4 V8 (2025 on)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cp\u003eThe Milltek Sport GPF back exhaust for the Land Rover Defender OCTA 4.4 V8 (2025 on) replaces everything behind the petrol particulate filter (GPF\/OPF): the centre section and rear silencer. The factory catalyst and GPF stay in place. It is built from 3.15\" (80mm) T304 stainless steel pipework by Milltek Sport in Derbyshire, and comes with the clamps, gaskets and hangers it needs.\u003c\/p\u003e\n\u003ch3\u003eFrom Milltek Sport\u003c\/h3\u003e\u003cp\u003eThe OCTA is the latest and greatest offering in the iconic Land Rover Defender range. As with many modern cars it's lacking the exhaust soundtrack you might expect, that's where our Milltek system comes in. Designed to open up those V8 tones while leaving the emissions filter untouched.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThe system retains the factory valve control and has been developed to not increase highway drone. We offer the system with exits to fit the factory exhaust tip as well as our full range of Milltek exhaust tip finishes. \u003c\/p\u003e\r\n\r\n\u003cp\u003eFrom late 2018, many vehicles have been manufactured with a Gasoline\/Otto Particulate Filter to reduce further the emissions from the vehicle. The Milltek Sport Particulate Filter-Back range is designed to compensate for the sound reducing qualities from the particulate filter and significantly improve the sound aesthetic of the exhaust system.\u003c\/p\u003e\n\u003ch3\u003eChoosing your options\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eTips:\u003c\/strong\u003e Polished is bright stainless steel. Cerakote Black is a heat-resistant ceramic coating in satin black. Brushed Titanium is a titanium trim with a brushed finish. Burnt Titanium is titanium heat-treated to a blue-purple finish. GT trims are round, double-skinned tailpipes; the number is the outer diameter in millimetres.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLH Front Pipe\u003c\/li\u003e\n\u003cli\u003eRH Front Pipe\u003c\/li\u003e\n\u003cli\u003e2 × Centre Silencer Rep Pipes\u003c\/li\u003e\n\u003cli\u003e2 × Centre Connecting Pipes\u003c\/li\u003e\n\u003cli\u003eLH Axle Pipe\u003c\/li\u003e\n\u003cli\u003eRH Axle Pipe\u003c\/li\u003e\n\u003cli\u003eRear Silencer\u003c\/li\u003e\n\u003cli\u003eLH Valved Outlet\u003c\/li\u003e\n\u003cli\u003eLH INner Outlet Pipe\u003c\/li\u003e\n\u003cli\u003eRH Valved Outlet\u003c\/li\u003e\n\u003cli\u003eRH Inner Outlet Pipe\u003c\/li\u003e\n\u003cli\u003e4 × tailpipe trims in your chosen finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRoad use\u003c\/h3\u003e\u003cp\u003eThis gpf back exhaust keeps the factory catalytic converter and particulate filter, so emissions are unaffected.\u003c\/p\u003e\n\u003ch3\u003eLead time\u003c\/h3\u003e\u003cp\u003eMilltek Sport make every system in Derbyshire. The dispatch estimate next to the price is updated every morning from Milltek's live stock and build dates, and changes with the option you pick. If there is any delay on your order we will tell you within 24 hours.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/4dJGzv-rHOk\" title=\"Milltek Sport Land Rover Defender OCTA 4.4 V8 exhaust sound\" loading=\"lazy\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch6\u003eProduct Details\u003c\/h6\u003e\n\u003cdiv\u003e\n\u003cb\u003eBrand: \u003c\/b\u003eMilltek Sport\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eSystem type: \u003c\/b\u003eGPF Back Exhaust\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003ePipe bore: \u003c\/b\u003e3.15\" (80mm)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eMaterial: \u003c\/b\u003eT304 stainless steel\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eEC approved: \u003c\/b\u003eNo\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eECU remap needed: \u003c\/b\u003eNo\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eFitting time: \u003c\/b\u003e2–3 hours (Milltek's figure, including removing the factory part)\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eMade in: \u003c\/b\u003eDerbyshire, United Kingdom\u003c\/div\u003e\n\u003ch6\u003eVehicle Fitment\u003c\/h6\u003e\u003ctable style=\"width:100%; border-collapse:collapse; font-size:14px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eEngine code\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLand Rover\u003c\/td\u003e\n\u003ctd\u003eDefender\u003c\/td\u003e\n\u003ctd\u003eP635 OCTA MHEV 4x4\u003c\/td\u003e\n\u003ctd\u003e635 hp\u003c\/td\u003e\n\u003ctd\u003eS68B44B(NC11)\u003c\/td\u003e\n\u003ctd\u003e2024–2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eMilltek list this part for: Defender \u0026gt; 110 OCTA P635 (NC11 4.4 V8) \u0026gt; 2025 and Later.\u003c\/p\u003e\n\u003ch6\u003eInstallation Guide\u003c\/h6\u003e\u003cp\u003eWe recommend fitting by a garage or exhaust specialist. Milltek allow 2–3 hours including removing the factory part.\u003c\/p\u003e","brand":"Milltek Sport","offers":[{"title":"Polished GT-100","offer_id":56538081984891,"sku":"MIL-SSXLR263","price":3678.26,"currency_code":"GBP","in_stock":true},{"title":"Cerakote Black","offer_id":56538082017659,"sku":"MIL-SSXLR262","price":3633.55,"currency_code":"GBP","in_stock":true},{"title":"Cerakote Black GT-100","offer_id":56538082050427,"sku":"MIL-SSXLR264","price":3678.26,"currency_code":"GBP","in_stock":true},{"title":"Brushed Titanium GT-100","offer_id":56538082083195,"sku":"MIL-SSXLR265","price":3984.6,"currency_code":"GBP","in_stock":true},{"title":"Burnt Titanium GT-100","offer_id":56538082115963,"sku":"MIL-SSXLR266","price":4300.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0511\/6700\/2795\/files\/milltek-gpf-back-exhaust-land-rover-defender-oct-01.jpg?v=1792896381","url":"https:\/\/hazmotorsport.co.uk\/products\/milltek-sport-gpf-back-exhaust-land-rover-defender-octa-4-4-v8","provider":"HAZ MOTORSPORT","version":"1.0","type":"link"}