{"product_id":"milltek-sport-bmw-g8x-m3-m4-axle-back-system-with-gt-115-polished-trims-ece-approved","title":"Milltek Sport BMW G8X M3\/M4 - Axle Back System with GT-115 Polished Trims - ECE Approved","description":"\u003cp\u003eTransform the sound and appearance of your BMW M3 or M4 G8X with the Milltek Sport Axle Back Exhaust System featuring polished GT-115 tips. ECE approved and road-legal across the UK and Europe, this is the definitive axle-back upgrade for the S58-powered G80\/G81\/G82\/G83 generation.\u003c\/p\u003e\u003cp\u003eDesigned as a direct replacement for the OEM rear exhaust section, this system delivers a significantly improved exhaust note — deeper, more purposeful, and befitting the performance credentials of the M3 and M4. The electronically controlled valved design integrates with the BMW's active exhaust system for quiet, civilised cruising and an exhilarating sound under hard acceleration.\u003c\/p\u003e\u003cp\u003eManufactured from 304L aircraft-grade stainless steel in the UK, the system is finished with polished GT-115 round exhaust tips that complement the aggressive styling of the G8X M cars. Whether you own an M3 Competition, M3 Touring, M4 Competition, or xDrive variant, this system is confirmed to fit the full G8X family.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFitment: BMW M3 G80\/G81 (2020+) \u0026amp; M4 G82 (2020+) — OPF\/GPF \u0026amp; Non-OPF variants\u003c\/li\u003e\n\u003cli\u003ePipe diameter: 80mm\u003c\/li\u003e\n\u003cli\u003eTip style: Polished GT-115 round tips\u003c\/li\u003e\n\u003cli\u003eE-marked: Yes (ECE approved, M3M4G8X)\u003c\/li\u003e\n\u003cli\u003eFitting time: 1.5–2 hours\u003c\/li\u003e\n\u003cli\u003eMade in the UK\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSKU: SSXBM1169\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":58335691702656,"sku":"SSXBM1169","price":2412.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0720\/7557\/5573\/files\/SSXBM1169_1.jpg?v=1782477641","url":"https:\/\/stringtheorygarage.com\/en-im\/products\/milltek-sport-bmw-g8x-m3-m4-axle-back-system-with-gt-115-polished-trims-ece-approved","provider":"String Theory Garage","version":"1.0","type":"link"}