{"product_id":"milltek-road-gpf-back-for-ineos-quartermaster-b58-cerakote-black-tips-ssxine138","title":"Milltek Road+ GPF-Back for Ineos Quartermaster B58, Cerakote Black Tips","description":"\u003cp\u003eMilltek Road+ Part-Resonated Gasoline Particulate Filter-Back exhaust system for the Ineos Quartermaster (B58 petrol). Designed to restore the refined tone compromised by factory GPF technology while delivering improved sound dynamics and aesthetic styling with Cerakote Black tips.\u003c\/p\u003e\n\u003cp\u003eThe Quartermaster's B58 engine benefits from a tuned resonance chamber that compensates for the sound-dampening characteristics of the OPF\/GPF fitted from late 2018 onwards. This Part-Resonated design maintains a sophisticated character under load while improving full-throttle definition. T304L stainless steel construction with mandrel-bent primary pipes and CNC-formed junctions ensure precision fitment and durability. Cerakote Black polished tips provide integrated styling that complements the factory aesthetic.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect factory fitment - no modifications required\u003c\/li\u003e\n\u003cli\u003ePart-Resonated chambering for refined tone character\u003c\/li\u003e\n\u003cli\u003eT304L stainless steel, hand-finished construction\u003c\/li\u003e\n\u003cli\u003eGPF-back configuration (retains factory particulate filter)\u003c\/li\u003e\n\u003cli\u003eCerakote Black polished tips\u003c\/li\u003e\n\u003cli\u003eEC approved for EU\/UK road use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFits OE system.\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.\u003c\/p\u003e\n\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2025-2026 INEOS Grenadier Quartermaster Base\u003c\/li\u003e\n\u003cli\u003e2025-2026 INEOS Grenadier Quartermaster Fieldmaster\u003c\/li\u003e\n\u003cli\u003e2025-2026 INEOS Grenadier Quartermaster Trialmaster\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60151277650206,"sku":"MILSSXINE138","price":1845.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXINE138_uk1.webp?v=1791258927","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-road-gpf-back-for-ineos-quartermaster-b58-cerakote-black-tips-ssxine138","provider":"Signature Autohaus","version":"1.0","type":"link"}