{"product_id":"mercedes-amg-gt-ecu-tune-m178","title":"Mercedes AMG GT GTS GTR GTC ECU Tuning – M178 Optimized Performance","description":"\u003cdiv style=\"font-family: Arial, sans-serif; background-color: #f5f5f5; padding: 25px; color: #1a1a1a; max-width: 900px; margin: auto; line-height: 1.6;\"\u003e\n\u003cp style=\"text-align: center; font-size: 18px;\"\u003e\u003cstrong\u003eCustom ECU performance tuning for Mercedes-AMG M178 4.0L biturbo V8 models\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e💡 Why Choose Our Tuning Service?\u003c\/h2\u003e\n\u003cp\u003eThis isn’t a generic flash. Our M178 calibrations are developed in-house, optimized on the dyno, and tested on the street and track. Every map is custom-built around your fuel, hardware, and driving preferences to deliver maximum power with factory-level refinement and reliability.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e+120–150 whp\u003c\/strong\u003e with proper supporting mods\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e+130–170 lb-ft\u003c\/strong\u003e torque increase\u003c\/li\u003e\n\u003cli\u003eFuel maps available for \u003cstrong\u003e91, 93, and 100 octane\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable burbles, throttle response, and boost timing.\u003c\/li\u003e\n\u003cli\u003eDesigned for consistent performance in all conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e💰 Pricing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eECU Tune:\u003c\/strong\u003e $1,995\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECU Tune w\/ Downpipe Purchase:\u003c\/strong\u003e $1,500 (\u003cem\u003esave $495\u003c\/em\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMyGenius Handheld Programmer:\u003c\/strong\u003e $300 (required if using multiple maps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional Maps:\u003c\/strong\u003e $250 each\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Downpipe CTA --\u003e\n\u003cdiv style=\"text-align: center; margin: 22px 0;\"\u003e\u003ca href=\"\/collections\/downpipes\" style=\"background-color: #990000; color: #fff; padding: 14px 28px; border-radius: 6px; font-size: 18px; text-decoration: none; font-weight: bold; display: inline-block;\"\u003e 🔥 Shop Downpipes for $495 Tune Discount → \u003c\/a\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch2\u003e🚘 Vehicle Compatibility\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with all Mercedes-AMG M178 4.0L biturbo models:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAMG GT\u003c\/li\u003e\n\u003cli\u003eAMG GTS\u003c\/li\u003e\n\u003cli\u003eAMG GTR\u003c\/li\u003e\n\u003cli\u003eAMG GTC\u003c\/li\u003e\n\u003cli\u003eAMG GT Black Series (base support)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e💬 Customer Reviews\u003c\/h2\u003e\n\u003cblockquote style=\"border-left: 4px solid #ccc; padding-left: 15px;\"\u003e“Picked up insane torque. Burbles are clean and tasteful. Car drives like it should’ve from factory.”\u003c\/blockquote\u003e\n\u003cblockquote style=\"border-left: 4px solid #ccc; padding-left: 15px;\"\u003e“Ran 10s on 91 octane with the tune. Daily-drivable but wildly fast. Perfect balance.”\u003c\/blockquote\u003e\n\u003chr\u003e\n\u003ch2\u003e🚚 How to Order\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact us\u003c\/strong\u003e with your vehicle details and current modifications.\u003c\/li\u003e\n\u003cli\u003eSelect your tuning method:\n\u003cul style=\"margin-top: 6px;\"\u003e\n\u003cli\u003e📦 \u003cstrong\u003eMyGenius Handheld Programmer\u003c\/strong\u003e (ships to you)\u003c\/li\u003e\n\u003cli\u003e🚚 \u003cstrong\u003eMail-in ECU Service\u003c\/strong\u003e (fast turnaround)\u003c\/li\u003e\n\u003cli\u003e🏁 \u003cstrong\u003eIn-Person Tuning\u003c\/strong\u003e at our Southern California location\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnjoy your \u003cstrong\u003efully optimized M178 setup\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv style=\"text-align: center; margin-top: 20px;\"\u003e\u003ca href=\"\/pages\/contact\" style=\"background-color: #333; color: #fff; padding: 12px 22px; border-radius: 5px; font-size: 17px; text-decoration: none; display: inline-block;\"\u003e 📞 Contact Us About M178 Tuning \u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BenzUnited Parts","offers":[{"title":"Default Title","offer_id":45164390613167,"sku":"","price":2499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/8718\/9935\/files\/mercedes-amg-gt-r-m178-engine-bay-performance.jpg?v=1747631645","url":"https:\/\/benzunitedparts.com\/products\/mercedes-amg-gt-ecu-tune-m178","provider":"BenzUnited Parts","version":"1.0","type":"link"}