{"product_id":"audi-a4-2017-2019-b9-led-headlight-upgrade","title":"Audi A4 2017-2019 B9 LED Headlight Upgrade","description":"\u003ch1\u003eDescription\u003c\/h1\u003e\n\u003cp data-start=\"0\" data-end=\"270\"\u003eGive your Audi A4 B8.5 (2013–2016) a serious rear-end upgrade with these premium LED rear lights. Designed to modernise the factory styling, this upgrade delivers a sharp OEM+ appearance inspired by newer Audi lighting design, instantly transforming the look of your A4.\u003c\/p\u003e\n\u003chr data-start=\"272\" data-end=\"275\"\u003e\n\u003cp data-start=\"277\" data-end=\"619\"\u003eEngineered as a direct replacement for factory rear lights, these LED units feature a modern full LED light signature with refined internal detailing that enhances the clean sedan and Avant body lines. The updated design keeps the original Audi proportions intact while giving the rear end a more premium, aggressive, and contemporary finish.\u003c\/p\u003e\n\u003chr data-start=\"621\" data-end=\"624\"\u003e\n\u003cp data-start=\"626\" data-end=\"923\"\u003eWhether you're upgrading from standard halogen or factory LED units, this upgrade provides a major improvement in both styling and visibility. The bright LED brake, tail, and indicator functions deliver faster response times, crisp illumination, and a more distinctive road presence day and night.\u003c\/p\u003e\n\u003chr data-start=\"925\" data-end=\"928\"\u003e\n\u003cp data-start=\"930\" data-end=\"1223\"\u003eMany aftermarket Audi A4 B8.5 LED rear lights feature updated “B9-style” inspired light signatures, smoked lens options, and dynamic sequential indicators depending on specification. These designs bring a more modern Audi aesthetic to the rear while maintaining a clean OEM+ factory-style fit.\u003c\/p\u003e\n\u003chr data-start=\"1225\" data-end=\"1228\"\u003e\n\u003cp data-start=\"1230\" data-end=\"1579\"\u003e⚠️ Important Note: Depending on trim level (SE, S line, Black Edition, Quattro, or S4), some vehicles may require resistor modules, wiring adapters, or coding to ensure full functionality and prevent bulb warnings or hyperflashing. Fitment can also vary between saloon and Avant models, so correct variant selection is essential before installation.\u003c\/p\u003e\n\u003chr data-start=\"1581\" data-end=\"1584\"\u003e\n\u003cp data-start=\"1586\" data-end=\"1812\"\u003eInstallation is generally straightforward using factory mounting points and connectors, with no major modifications required in most applications. Designed as a direct OEM-style replacement for a clean, factory-quality finish.\u003c\/p\u003e\n\u003chr data-start=\"1814\" data-end=\"1817\"\u003e\n\u003cp data-start=\"1819\" data-end=\"1847\"\u003eWhy Choose FastLife Customs?\u003c\/p\u003e\n\u003cp data-start=\"1849\" data-end=\"2038\"\u003eAt FastLife Customs, we’re all about building cars that stand out. Our products are selected to deliver the perfect balance of style, quality, and ease—built for those living the fast life.\u003c\/p\u003e\n\u003chr data-start=\"2040\" data-end=\"2043\"\u003e\n\u003cp data-start=\"2045\" data-end=\"2065\"\u003eWhat’s in the Box 📦\u003c\/p\u003e\n\u003cp data-start=\"2067\" data-end=\"2163\"\u003e📦 Left LED Rear Light\u003cbr data-start=\"2089\" data-end=\"2092\"\u003e📦 Right LED Rear Light\u003cbr data-start=\"2115\" data-end=\"2118\"\u003e📦 Plug \u0026amp; Play Wiring\u003cbr data-start=\"2139\" data-end=\"2142\"\u003e📦 Ready to Install\u003c\/p\u003e\n\u003chr data-start=\"2165\" data-end=\"2168\"\u003e\n\u003cp data-start=\"2170\" data-end=\"2185\"\u003eKey Features 🚗\u003c\/p\u003e\n\u003cp data-start=\"2187\" data-end=\"2568\"\u003e🚗 Fits Audi A4 B8.5 (2013–2016)\u003cbr data-start=\"2219\" data-end=\"2222\"\u003e💡 Full LED Upgrade – Modern OEM+ rear-end styling\u003cbr data-start=\"2272\" data-end=\"2275\"\u003e✨ Refined Light Signature – Clean updated Audi look\u003cbr data-start=\"2326\" data-end=\"2329\"\u003e🎬 Optional Sequential Indicators – Dynamic lighting effect\u003cbr data-start=\"2388\" data-end=\"2391\"\u003e⚙️ Plug \u0026amp; Play – Direct replacement fitment (see note)\u003cbr data-start=\"2445\" data-end=\"2448\"\u003e🔥 Instant Upgrade – Completely modernises rear-end appearance\u003cbr data-start=\"2510\" data-end=\"2513\"\u003e🌙 Enhanced Visibility – Brighter, sharper LED output\u003c\/p\u003e\n\u003chr data-start=\"2570\" data-end=\"2573\"\u003e\n\u003cp data-start=\"2613\" data-end=\"2760\"\u003e \u003c\/p\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv style=\"font-family: Inter, 'SF Pro Text', Roboto, 'Helvetica Neue', Helvetica, Tahoma, Arial, 'PingFang SC', 'Microsoft YaHei', serif; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: rgb(12, 10, 9); background-color: rgb(255, 255, 255); border: 0px; margin: 0px 0px 10px 0px; padding: 0px; box-sizing: border-box;\" class=\"J_module\" align=\"start\"\u003e\n\u003cdiv style=\"font-family: inherit; font-size: inherit; 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