{"product_id":"lb7-custom-tuning-2001-2004-duramax","title":"LB7 Custom Tuning (2001–2004 Duramax)","description":"\u003ch2 data-path-to-node=\"2\"\u003eLB7 Custom Tuning (2001–2004 Duramax)\u003c\/h2\u003e\n\u003cp id=\"p-rc_5747b1e738d34c1c-54\" data-path-to-node=\"3\"\u003e\u003cspan class=\"citation-1982\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1981 citation-1982\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1980 citation-1981 citation-1982\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1979 citation-1980 citation-1981 citation-1982\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1979 citation-1980 citation-1981 citation-1982 citation-1983\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1979 citation-1980 citation-1981 citation-1982 citation-1983 citation-1984 citation-end-1984\"\u003eUnlock the true potential of your 6.6L LB7 Duramax. Our custom tuning is engineered to optimize engine efficiency, maximize power delivery, and drastically improve overall drivability. Whether you are looking for a reliable daily driver tow tune or a m\u003csup data-turn-source-index=\"1\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1979 citation-1980 citation-1981 citation-1982 citation-1983 citation-end-1983\"\u003eax-effort street tune, each file is tailored specifically to your truck’s modifications and your driving goals\u003csup data-turn-source-index=\"2\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1979 citation-1980 citation-1981 citation-1982 citation-end-1982\"\u003e.\u003csup data-turn-source-index=\"3\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1979 citation-1980 citation-1981 citation-end-1981\"\u003e\u003csup data-turn-source-index=\"4\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1979 citation-1980 citation-end-1980\"\u003e\u003csup data-turn-source-index=\"5\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1979 citation-end-1979\"\u003e\u003csup data-turn-source-index=\"6\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"4\"\u003e\n\u003cspan class=\"citation-1978\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1977 citation-1978\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1976 citation-1977 citation-1978\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1975 citation-1976 citation-1977 citation-1978 citation-end-1978\"\u003eKey Benefits\u003csup data-turn-source-index=\"7\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1975 citation-1976 citation-1977 citation-end-1977\"\u003e\u003csup data-turn-source-index=\"8\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1975 citation-1976 citation-end-1976\"\u003e\u003csup data-turn-source-index=\"9\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1975 citation-end-1975\"\u003e\u003csup data-turn-source-index=\"10\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul data-path-to-node=\"5\"\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_5747b1e738d34c1c-55\" data-path-to-node=\"5,0,0\"\u003e\u003cspan class=\"citation-1973\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1972 citation-1973\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1971 citation-1972 citation-1973\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1971 citation-1972 citation-1973 citation-1974\"\u003e\u003c\/span\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5,0,0\"\u003e\u003cspan class=\"citation-1971 citation-1972 citation-1973 citation-1974\"\u003eOptimized Performance:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-1971 citation-1972 citation-1973 citation-1974 citation-end-1974\"\u003e Cleaner fueling, sharper throttle response, and maximized horsepower\/torque curve\u003csup data-turn-source-index=\"11\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1971 citation-1972 citation-1973 citation-end-1973\"\u003es.\u003csup data-turn-source-index=\"12\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1971 citation-1972 citation-end-1972\"\u003e\u003csup data-turn-source-index=\"13\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1971 citation-end-1971\"\u003e\u003csup data-turn-source-index=\"14\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_5747b1e738d34c1c-56\" data-path-to-node=\"5,1,0\"\u003e\u003cspan class=\"citation-1969\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1968 citation-1969\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1968 citation-1969 citation-1970\"\u003e\u003c\/span\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5,1,0\"\u003e\u003cspan class=\"citation-1968 citation-1969 citation-1970\"\u003eEnhanced Towing:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-1968 citation-1969 citation-1970 citation-end-1970\"\u003e Lower exhaust gas temperatures (EGTs) and smoother power delivery under heavy loa\u003csup data-turn-source-index=\"15\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1968 citation-1969 citation-end-1969\"\u003eds.\u003csup data-turn-source-index=\"16\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1968 citation-end-1968\"\u003e\u003csup data-turn-source-index=\"17\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_5747b1e738d34c1c-57\" data-path-to-node=\"5,2,0\"\u003e\u003cspan class=\"citation-1966\"\u003e\u003c\/span\u003e\u003cspan class=\"citation-1966 citation-1967\"\u003e\u003c\/span\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"5,2,0\"\u003e\u003cspan class=\"citation-1966 citation-1967\"\u003eImproved Efficiency:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-1966 citation-1967 citation-end-1967\"\u003e Fine-tuned injection timing and rail pressure mapping often yield noticeable fuel economy gains when driven r\u003csup data-turn-source-index=\"18\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"citation-1966 citation-end-1966\"\u003eesponsibly.\u003csup data-turn-source-index=\"19\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"6\"\u003e\n\u003ch3 data-path-to-node=\"7\"\u003e\u003cspan class=\"citation-1965 citation-end-1965\"\u003eHow to Order \u0026amp; Variant Options\u003csup data-turn-source-index=\"20\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp id=\"p-rc_5747b1e738d34c1c-58\" data-path-to-node=\"8\"\u003e\u003cspan class=\"citation-1964 citation-end-1964\"\u003ePlease select your hardwa\u003csup data-turn-source-index=\"21\" class=\"superscript embedded\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003ere and software requirements from the choices below before adding to your cart:\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"9\"\u003e1. Tune Option's\u003c\/h3\u003e\n\u003cp data-path-to-node=\"10\"\u003eSelect the software combination that matches your transmission set up and performance goals:\u003c\/p\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"11,0,0\"\u003eSingle ECM \/ No TCM:\u003c\/b\u003e A single, optimized custom tune calibrated specifically for your engine's physical modifications. Ideal for stock or built trucks that do not require independent transmission tuning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"11,1,0\"\u003eSingle ECM \/ TCM:\u003c\/b\u003e Includes your single custom engine tune \u003cb data-index-in-node=\"58\" data-path-to-node=\"11,1,0\"\u003eplus\u003c\/b\u003e custom Transmission Control Module (TCM) tuning. TCM tuning optimizes shift points, improves clutch holding capability, and ensures your transmission keeps the engine in its peak powerband.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"11,2,0\"\u003eDSP5 ECM \/ No TCM:\u003c\/b\u003e Provides 5 custom power levels calibrated to your engine's modifications, allowing you to switch power levels on-the-fly (e.g., Optimized Stock, Heavy Tow, Light Tow, Street, Max Effort) using a physical switch.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"11,3,0\"\u003eDSP5 ECM \/ TCM:\u003c\/b\u003e The ultimate performance and driveability package. Gives you 5 on-the-fly switchable engine power levels paired with a fully customized TCM calibration to handle the increased torque across all 5 power settings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"12\"\u003e2. Need a EFILive Autocal?\u003c\/h3\u003e\n\u003cul data-path-to-node=\"13\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"13,0,0\"\u003eYes I need a EFILive Autocal \/ FlashScan:\u003c\/b\u003e Select this if you do not own a tuning device. We will ship you a brand-new device pre-loaded with your custom calibrations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"13,1,0\"\u003eNo (I have my own EFILive Autocal \/ FlashScan):\u003c\/b\u003e Select this if you already own your own hardware and just need the custom tune files emailed to you.\u003c\/p\u003e\n\u003cul data-path-to-node=\"13,1,1\"\u003e\n\u003cli\u003e\n\u003cblockquote data-path-to-node=\"13,1,1,0,0\"\u003e\n\u003cp data-path-to-node=\"13,1,1,0,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"13,1,1,0,0,0\"\u003eCRITICAL:\u003c\/b\u003e If you are using your own device, you \u003cb data-index-in-node=\"48\" data-path-to-node=\"13,1,1,0,0,0\"\u003emust enter your FlashScan\/AutoCal Serial Number\u003c\/b\u003e in the required vehicle information field below before adding the item to your cart so we can license the files to your unit.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"14\"\u003e3. Need a DSP 5 Tune Switch?\u003c\/h3\u003e\n\u003cul data-path-to-node=\"15\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,0,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"15,0,0\"\u003eNo (I have my own DSP5 Switch):\u003c\/b\u003e Choose this if your truck is already wired or you are sourcing your own selector switch.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"15,1,0\"\u003eI need a DSP5 Switch:\u003c\/b\u003e We will include a high-quality, pre-wired 5-position selector switch with your order.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"16\"\u003e\n\u003cblockquote data-path-to-node=\"17\"\u003e\n\u003cp data-path-to-node=\"17,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"17,0\"\u003eNote:\u003c\/b\u003e Please ensure all required text fields (\u003cb data-index-in-node=\"46\" data-path-to-node=\"17,0\"\u003eVIN\u003c\/b\u003e, \u003cb data-index-in-node=\"51\" data-path-to-node=\"17,0\"\u003eTire Size\u003c\/b\u003e, and \u003cb data-index-in-node=\"66\" data-path-to-node=\"17,0\"\u003eList of Modifications\u003c\/b\u003e) are completely filled out in the vehicle information block above. This data goes directly to our tuning team to build your precise, tailored calibration.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"MDF Custom's","offers":[{"title":"Single ECM \/ No TCM \/ Yes I need a EFILive Autocal \/ No (I have my own DSP5 Switch)","offer_id":51034172391460,"sku":"lb7-single-v3","price":900.0,"currency_code":"USD","in_stock":true},{"title":"Single ECM \/ No TCM \/ Yes I need a EFILive Autocal \/ I need a DSP5 Switch","offer_id":51034224623652,"sku":"lb7-single-v3-switch","price":950.0,"currency_code":"USD","in_stock":true},{"title":"Single ECM \/ No TCM \/ No (I have my own EFILive Autocal \/ FlashScan) \/ No (I have my own DSP5 Switch)","offer_id":51034172424228,"sku":"lb7-single","price":350.0,"currency_code":"USD","in_stock":true},{"title":"Single ECM \/ No TCM \/ No (I have my own EFILive Autocal \/ FlashScan) \/ I need a DSP5 Switch","offer_id":51034224656420,"sku":"lb7-single-switch","price":400.0,"currency_code":"USD","in_stock":true},{"title":"Single ECM \/ TCM \/ Yes I need a EFILive Autocal \/ No (I have my own DSP5 Switch)","offer_id":51035234435108,"sku":"lb7-single-tcm-v3","price":1100.0,"currency_code":"USD","in_stock":true},{"title":"Single ECM \/ TCM \/ Yes I need a EFILive Autocal \/ I need a DSP5 Switch","offer_id":51035234467876,"sku":"lb7-single-tcm-v3-switch","price":1150.0,"currency_code":"USD","in_stock":true},{"title":"Single ECM \/ TCM \/ No (I have my own EFILive Autocal \/ FlashScan) \/ No (I have my own DSP5 Switch)","offer_id":51035234500644,"sku":"lb7-single-tcm","price":550.0,"currency_code":"USD","in_stock":true},{"title":"Single ECM \/ TCM \/ No (I have my own EFILive Autocal \/ FlashScan) \/ I need a DSP5 Switch","offer_id":51035234533412,"sku":"lb7-single-tcm-swtich","price":600.0,"currency_code":"USD","in_stock":true},{"title":"DSP5 ECM \/ No TCM \/ Yes I need a EFILive Autocal \/ No (I have my own DSP5 Switch)","offer_id":51035234566180,"sku":"lb7-dsp5-v3","price":1050.0,"currency_code":"USD","in_stock":true},{"title":"DSP5 ECM \/ No TCM \/ Yes I need a EFILive Autocal \/ I need a DSP5 Switch","offer_id":51035234598948,"sku":"lb7-dsp5-v3-switch","price":1100.0,"currency_code":"USD","in_stock":true},{"title":"DSP5 ECM \/ No TCM \/ No (I have my own EFILive Autocal \/ FlashScan) \/ No (I have my own DSP5 Switch)","offer_id":51035234631716,"sku":"lb7-dsp5","price":500.0,"currency_code":"USD","in_stock":true},{"title":"DSP5 ECM \/ No TCM \/ No (I have my own EFILive Autocal \/ FlashScan) \/ I need a DSP5 Switch","offer_id":51035234664484,"sku":"lb7-dsp5-switch","price":550.0,"currency_code":"USD","in_stock":true},{"title":"DSP5 ECM \/ TCM \/ Yes I need a EFILive Autocal \/ No (I have my own DSP5 Switch)","offer_id":51035234697252,"sku":"lb7-dsp5-tcm-v3","price":1250.0,"currency_code":"USD","in_stock":true},{"title":"DSP5 ECM \/ TCM \/ Yes I need a EFILive Autocal \/ I need a DSP5 Switch","offer_id":51035234730020,"sku":"lb7-dsp5-tcm-v3-switch","price":1300.0,"currency_code":"USD","in_stock":true},{"title":"DSP5 ECM \/ TCM \/ No (I have my own EFILive Autocal \/ FlashScan) \/ No (I have my own DSP5 Switch)","offer_id":51035234762788,"sku":"lb7-dsp5-tcm","price":700.0,"currency_code":"USD","in_stock":true},{"title":"DSP5 ECM \/ TCM \/ No (I have my own EFILive Autocal \/ FlashScan) \/ I need a DSP5 Switch","offer_id":51035234795556,"sku":"lb7-dsp5-tcm-switch","price":750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/0782\/3140\/files\/ChatGPT_Image_Jul_7_2026_11_21_34_AM.png?v=1783437727","url":"https:\/\/shop.mdfcustoms.com\/products\/lb7-custom-tuning-2001-2004-duramax","provider":"MDF Customs","version":"1.0","type":"link"}