{"product_id":"renntech-ecu-upgrade-2014-2016-mercedes-benz-e-550-w212","title":"RennTech ECU Upgrade 2014-2016 Mercedes-Benz E 550 W212","description":"\u003cp\u003eThe 2014-2016 E 550 responds well to software, and RennTech has been writing engine calibrations since electronic engine management arrived in the mid-1980s. This ECU Upgrade rewrites ignition timing, throttle mapping, fueling and boost control on the 4.6L M278 twin-turbo V8, so the extra power arrives across the whole rev range without giving up everyday drivability. RennTech rates the car at 480 hp and 605 lb-ft with this upgrade. That is a gain of 45 hp and 162 lb-ft.\u003c\/p\u003e\u003ch3\u003eKey details\u003c\/h3\u003e\n\u003cp\u003eRennTech bases its gains on stock figures it measured itself, and calculates crank numbers with a 17% drivetrain loss on 4MATIC cars. This calibration requires 91 octane or higher.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRevised ignition timing, throttle mapping, air-fuel ratios and boost control\u003c\/li\u003e\n\u003cli\u003eGains across the entire rev range, not just at peak\u003c\/li\u003e\n\u003cli\u003eDeveloped on RennTech's own dyno and road tested\u003c\/li\u003e\n\u003cli\u003eKeeps factory-like drivability and reliability for daily use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat is included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRennTech calibration for your car\u003c\/li\u003e\n\u003cli\u003eDelivery as listed by RennTech for this model (HHT tuner or ECU flash)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003ePart number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54.212.E550BI.FL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.6L M278 twin-turbo V8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003eRated output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e480 hp \/ 605 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003eGain\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+45 hp \/ +162 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 12px 4px 0\"\u003e\u003cstrong\u003eShipping weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eFitment notes\u003c\/h3\u003e\u003cp\u003eFitment is as listed by RennTech for this part number. Your VIN is required with the order.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin-top:12px\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#03589c;color:#fff\"\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eChassis\u003c\/th\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eYear\u003c\/th\u003e\n\u003cth style=\"padding:8px;text-align:left\"\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr style=\"background:#e8f4f8\"\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003eMercedes-Benz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003eE 550\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003eW212\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003e2014-2016\u003c\/td\u003e\n\u003ctd style=\"padding:8px;border-top:1px solid #fff\"\u003e4.6L M278 twin-turbo V8\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"RennTech","offers":[{"title":"Default Title","offer_id":68064001491095,"sku":"54.212.E550BI.FL","price":2172.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2641\/0682\/files\/renntech_hht_003_d241b416-f961-4896-a7c3-d4eaae542c07.jpg?v=1792120765","url":"https:\/\/autotalent.com\/products\/renntech-ecu-upgrade-2014-2016-mercedes-benz-e-550-w212","provider":"AutoTalent","version":"1.0","type":"link"}