{"product_id":"renntech-performance-ecu-upgrade-for-mercedes-benz-r231-sl-550-amg-2016-2020","title":"RennTech Performance ECU+ Upgrade For Mercedes-Benz R231 SL 550 2016-2021","description":"\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ciframe width=\"853\" height=\"480\" src=\"https:\/\/www.youtube.com\/embed\/tggsVQUn1JI\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDescription:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv id=\"tabs-1\" aria-labelledby=\"ui-id-1\" role=\"tabpanel\" class=\"ui-tabs-panel ui-corner-bottom ui-widget-content\" aria-hidden=\"false\"\u003e\n\u003cdiv id=\"pro_desc\" class=\"product-single__description rte\" itemprop=\"description\"\u003e\n\u003cdiv id=\"tabs-1\" aria-labelledby=\"ui-id-1\" role=\"tabpanel\" class=\"ui-tabs-panel ui-corner-bottom ui-widget-content\" aria-hidden=\"false\"\u003e\n\u003cdiv id=\"pro_desc\" class=\"product-single__description rte\" itemprop=\"description\"\u003e\n\u003cp\u003eRennTech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal. RennTech proprietary tuning module stores both the RennTech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eThe RennTech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RennTech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003eRennTech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's. Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eWith the newest update of their Software Upgrade for the M278 \"“ 4.7L V8 BiTurbo, RENNtech boosts the 550-Series to AMG Power Levels. The RennTech upgraded M278 now produces up to 540 HP and 705 LB-FT at crank. Compared to power numbers by Mercedes-Benz, the SL 550 gains up to 66 HP and 139 LB-FT. This Software update delivers up to 10 HP and 99 LB-FT more than the previous version. The vast amount of increased torque across the entire RPM range gives the 550 an extra edge to compete with AMG powered vehicles. All this without sacrificing around town comfort and daily driver reliability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAttention:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003eWe have found the M278 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003ePower gains are calculated based on stock numbers measured by \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003eRennTech Crank Performance Numbers are calculated with a 14% Drivetrain loss on RWD vehicles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003eStates known for poor fuel quality have to be supplied with a lower power setup\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eFeatures:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eGains: +66HP \/ +139LB-FT\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLong-lasting and driver reliability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSignificant gains in horsepower\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreases the performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSignificant gains torque \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreasing the engine's rev limiter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIncredible performance gains\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eUp to \u003c\/span\u003e540HP \/ 705LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStock Performance:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e449 HP @ 5,500rpm; 516 LB-FT @ 2,000-4,500rpm\u003c\/li\u003e\n\u003cli\u003e474 HP @ 5,500rpm; 566 LB-FT @2,800-3,900rpm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eModified Performance:\u003cbr\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e540 HP @ 5,500rpm; 705 LB-FT @ 3,700rpm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003eVehicle Fitment:\u003c\/span\u003e   \u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2016\u003cspan\u003e Mercedes-Benz\u003cspan\u003e R231 SL 550 \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2017\u003cspan\u003e Mercedes-Benz\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eR231 SL 550 \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2018\u003cspan\u003e Mercedes-Benz\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eR231 SL 550 \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2019\u003cspan\u003e Mercedes-Benz\u003cspan\u003e\u003cspan\u003e \u003c\/span\u003eR231 SL 550 \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan style=\"text-decoration: underline;\"\u003eNote:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eImages are for representation purpose only and may differ depending on application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"RennTech","offers":[{"title":"Default Title","offer_id":51929816826148,"sku":"54.231.SL550BT.FL","price":2480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/6801\/0532\/files\/RennTech_Performance_Intermediate_ECU_Upgrade_For_Mercedes-Benz_C217_S_63_AMG_BiTurbo_-_AutoTalent_16b7467d-98b8-4856-8ad1-09d9c2daa848.jpg?v=1768443549","url":"https:\/\/autohousesupply.com\/products\/renntech-performance-ecu-upgrade-for-mercedes-benz-r231-sl-550-amg-2016-2020","provider":"AutoHouseSupply","version":"1.0","type":"link"}