{"title":"2020-2026 GM 2500HD\/3500HD 6.6L L5P Duramax Modules","description":"\u003cdiv\u003e\n\u003cinput type=\"checkbox\" class=\"read-more-state\" id=\"post-1\"\u003e\n\u003cp class=\"read-more-wrap\"\u003eAfter upgrading and modifying your 2020-2026 GM 6.6L Duramax L5P, your transmission may struggle with shifting smoothly and reliably due to the increased power demands. A premium transmission control module is great for allowing your transmission to calculate the right time to shift, and preventing rough or unreliable gear changes. These transmission modules communicate directly with your truck’s computer, sending proper OBD II codes to ensure consistent and optimized shifting for every situation. In addition to improving gear shifting, these modules can detect transmission malfunctions, alerting you to potential issues before they lead to serious damage or expensive repairs. Be sure to check out some other \u003ca href=\"2020-2022-gm-duramax-66l-l5p-tuners-monitors\" title=\"2020-2024 GM 2500HD\/3500HD 6.6L L5P Duramax Chips, Modules \u0026amp; Tuners\" rel=\"noopener\" target=\"_blank\"\u003eTuners \u0026amp; Monitors\u003c\/a\u003e to optimize your GM 2500HD\/3500HD's efficiency even further.\u003cspan class=\"read-more-target\"\u003e \u003cspan class=\"headerspam\"\u003e\u003cstrong\u003eGM Duramax Fitments:\u003c\/strong\u003e 2020, 2021, 2022, 2023, 2024, 2025, 2026 GM 6.6L Duramax.\u003c\/span\u003e \u003cspan class=\"headerspam\"\u003e\u003cstrong\u003eSubmodel Fitments:\u003c\/strong\u003e WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali.\u003c\/span\u003e \u003cspan class=\"headerspam\"\u003eSome exceptions apply, please see individual product pages for specific fitments.\u003c\/span\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003clabel for=\"post-1\" class=\"read-more-trigger\"\u003e\u003c\/label\u003e\n\u003c\/div\u003e","products":[{"product_id":"duramax-tuner-dm1mo1372082000-pre-tuned-t93-tcm-replacement-2020-2023-gm-duramax-66l-10-speed-transmission","title":"Tuner DM1MO1372082000 Pre-Tuned T93 TCM Replacement | 2020-2023 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax L5P with 10-Speed Allison Transmission","description":"\u003cp\u003e\u003c\/p\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e \u003cul\u003e \u003cli\u003eSuperior shifting and drivability\u003c\/li\u003e \u003cli\u003eElevated shift points for larger tires\u003c\/li\u003e \u003cli\u003eAllows truck to feel more powerful\u003c\/li\u003e \u003cli\u003eGet best fuel economy possible\u003c\/li\u003e \u003cli\u003eEnsure engine is operating in preferred rev range\u003c\/li\u003e \u003cli\u003eQuicker shifts\u003c\/li\u003e  \u003c\/ul\u003e  \u003ch4\u003eTuned Transmission for Elevated Performance and Durability\u003c\/h4\u003e  The 10-Speed Allison Transmission in your 2020-2023 GM Duramax 6.6L L5P is decidedly an upgrade over the 6-speed Allison, however it still has plenty of room for improvement. Duramax Tuners Pre-Tuned t93 Replacement offers increased performance in any scenario you find yourself in. Not only will this tune offer your truck improved towing performance, but it will also offer smooth shifting for superior drivability. This tune will also eliminate the dreaded drawn-out shifts and weak clutch holding strength. Whether you're navigating daily commutes or tackling demanding towing tasks, Duramax Tuners Pre-Tuned T93 is the ultimate solution.  \u003ch4\u003eAdds Performance For Any Scenario\u003c\/h4\u003e  Duramax Tuner provides a versatile solution with both Mild and Aggressive transmission tuning options tailored to suit your specific needs. The Mild tune, optimized for Smooth Shift points, maintains a familiar stock-like feel ideal for daily commuters while emphasizing fuel efficiency. The Aggressive\/Elevated Shift Points offers increased performance to help push 35+ inch tires, allows for higher RPM operation and holding the gear longer and keeping it in its power band. This tune works well with an upgraded turbo charger. With your 10-speed transmission finely tuned, you'll experience optimal performance across diverse driving scenarios.   \u003cp\u003e\u003c\/p\u003e  \u003cp\u003e\u003c\/p\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2020-2023 GM Sierra\/Silverado 6.6L L5P  \u003cp\u003e\u003c\/p\u003e\u003cstrong\u003eApplication Notes:\u003c\/strong\u003e  \u003cul\u003e \u003cli\u003eThis package requires the use of an HP Tuners MPVI2, MPVI3 or RTD+ Flash Tool. If you do not already own one of these flash tools then you will want to purchase the REPLACEMENT T93 \u0026amp; TCM TUNING FOR 2020-2023 (L5P) ALLISON TRANSMISSION W\/ HP TUNERS HARDWARE AND CREDITS tuning package.\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003c\/p\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-auth=\"NotApplicable\" data-linkindex=\"0\"\u003ewww.P65warnings.ca.gov\u003c\/a\u003e","brand":"Duramax Tuner","offers":[{"title":"Default Title","offer_id":49527503290652,"sku":"DMTDM1MO1372082000","price":775.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dmtdm1mo1372082000_01.jpg?v=1722353960"},{"product_id":"duramax-tuner-dm1mo1371082000-t93-tcm-tuning-hp-tuners-for-2020-2023-duramax-66l-l5p-w-10-speed-transmission","title":"Tuner DM1MO1371082000 Replacement T93 and TCM Tuning with HP Tuners Hardware And Credits | 2020-2023 GM Silverado\/Sierra 2500HD\/3500HD 6.6L Duramax L5P with 10-Speed Allison Transmission","description":"\u003cp\u003e\u003c\/p\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e \u003cul\u003e \u003cli\u003eSuperior shifting and drivability\u003c\/li\u003e \u003cli\u003eImproved shift points for larger tires\u003c\/li\u003e \u003cli\u003eAllows truck to feel more powerful\u003c\/li\u003e \u003cli\u003eGet best fuel economy possible\u003c\/li\u003e \u003cli\u003eEnsure engine is operating in preferred rev range\u003c\/li\u003e \u003cli\u003eQuicker shifts\u003c\/li\u003e \u003cli\u003ePrevents short shifting in performance applications\u003c\/li\u003e  \u003c\/ul\u003e  \u003ch4\u003eTuned Transmission for both Towing and Street Performance\u003c\/h4\u003e  While the 10-Speed Allison Transmission in your 2020-2023 GM Duramax 6.6L L5P is a significant advancement from its 6-speed predecessor, there's still ample room for enhancement. Enter Duramax Tuner's Replacement T93 and TCM Tuning w\/ HP Tuner, designed to elevate your truck's performance in every driving scenario. This tune not only boosts towing capabilities but also ensures smooth shifting for unmatched drivability. Say goodbye to sluggish gear changes and compromised clutch strength. Whether you're maneuvering through daily commutes or tackling challenging towing assignments, Duramax Tuner's Replacement T93 and TCM Tuning w\/ HP Tuner stands as the ultimate solution.  \u003ch4\u003eElevates Your Driving Experience\u003c\/h4\u003e  Duramax Tuner offers a flexible solution with two distinct transmission tuning options: Mild and Aggressive, each customized to meet your unique requirements. The Mild tune prioritizes Smooth Shift points, delivering a familiar stock-like sensation perfect for daily commuting, while also preserving fuel efficiency. Conversely, the Aggressive\/Elevated Shift Points option ramps up performance, especially beneficial for trucks fitted with 35+ inch tires, and trucks with modified turbos. The tune enables higher RPM operation, extended gear retention within the power band, and seamless compatibility with upgraded turbochargers. With your 10-speed transmission precisely tuned, expect peak performance across a variety of driving scenarios.   \u003cp\u003e\u003c\/p\u003e  \u003cp\u003e\u003c\/p\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2020-2023 GM Sierra\/Silverado 6.6L L5P  \u003cp\u003e\u003c\/p\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e This product can expose you to chemicals that are known to the State of California to cause cancer. For more information, visit \u003ca href=\"https:\/\/www.p65warnings.ca.gov\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-auth=\"NotApplicable\" data-linkindex=\"0\"\u003ewww.P65warnings.ca.gov\u003c\/a\u003e","brand":"Duramax Tuner","offers":[{"title":"Default Title","offer_id":49527503388956,"sku":"DMTDM1MO1371082000","price":1373.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/dmtdm1mo1371082000_01.jpg?v=1722353959"},{"product_id":"10l1000-valve-body-pump-kit-with-enhanced-oil-flow-2020-2026-gm-sierra-silverado-2500hd-3500hd","title":"SunCoast SC-10L1000-PVB Valve Body \u0026 Pump Kit with Enhanced Oil Flow | 2020-2026 GM Sierra\/Silverado 2500HD\/3500HD 6.6L Duramax L5P","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreases line pressure by up to 60psi\u003c\/li\u003e\n\u003cli\u003eImproves clutch pack clamping force\u003c\/li\u003e\n\u003cli\u003eBoosts cooler charge pressure by 250%\u003c\/li\u003e\n\u003cli\u003eEnhanced torque converter lockup control\u003c\/li\u003e\n\u003cli\u003eShortens shift times under load\u003c\/li\u003e\n\u003cli\u003eReduces clutch degradation during shifts\u003c\/li\u003e\n\u003cli\u003eRaises lube pressure from 6psi to 20psi\u003c\/li\u003e\n\u003cli\u003eOptimized for towing and high horsepower use\u003c\/li\u003e\n\u003cli\u003eImproves transmission cooling and oil flow\u003c\/li\u003e\n\u003cli\u003eDecreases regulator valve actuation pressure by 33%\u003c\/li\u003e\n\u003cli\u003eBuilt-in pressure bypass prevents over-compression\u003c\/li\u003e\n\u003cli\u003eDesigned for 2020-2026 L5P 10L1000 transmissions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt To Make The 10L1000 Work As Hard As You Do\u003c\/h4\u003e\n\u003cp\u003eIf you push your L5P truck beyond light commuting, you already know the 10L1000 transmission can use some help when the loads get serious and the days get long. The SunCoast SC-10L1000-PVB Valve Body and Pump Kit is designed to turn that weak link into a real asset. From heavy towing to aggressive street driving, this setup delivers firmer shifts, stronger clutch holding power, and better overall control without sacrificing drivability! SunCoast takes a thoughtful approach here, improving oil flow and pressure in the areas that matter most instead of simply cranking up line pressure and hoping for the best. The result is a transmission that feels more confident under throttle and far more stable when torque demand spikes. Lockup happens quicker and cleaner, reducing unnecessary slip that can quietly kill the converter clutch over time. If your 2020-2026 Silverado or Sierra 2500HD or 3500HD sees real work or real power, this upgrade gives your transmission the backup it deserves.\u003c\/p\u003e\n\u003ch4\u003ePrecision Oil Control Designed For High Demand Conditions\u003c\/h4\u003e\n\u003cp\u003eThe SunCoast Pro Loc Valve Body and Pump Kit for the 10L1000 transmission is engineered to address known stress points when power levels and load demands increase. Overall line pressure is increased by as much as 60 psi, improving clutch pack clamping force while a built-in bypass prevents excessive pressure above 420 psi. The torque converter lockup circuit is modified to reduce the time from initial apply to zero turbine slip, which significantly improves clutch longevity. Lube circuit pressure is raised from a factory 6 psi to 20 psi, increasing oil flow to clutches, planets, and bushings to reduce heat buildup. SunCoast also recalibrates the regulator valve circuit, lowering the pressure required for full clutch engagement from 120 psi to 80 psi. This change shortens shift times and reduces frictional heat in critical clutch packs, especially the F clutch. Combined with increased cooler charge pressure and improved oil routing, this valve body and pump kit delivers the durability needed for towing, racing, or high horsepower L5P applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fitment: \u003c\/strong\u003e 2020, 2021, 2022, 2023, 2024, 2025, 2026 GM Sierra\/Silverado 2500HD\/3500HD 6.6L Duramax L5P\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2020-2026 GM Silverado and Sierra 2500HD\/3500HD with 6.6L Duramax L5P\u003c\/li\u003e\n\u003cli\u003eBuilt specifically for the 10L1000 automatic transmission\u003c\/li\u003e\n\u003cli\u003eAddresses common weak points in high load and high horsepower conditions\u003c\/li\u003e\n\u003cli\u003eImproves torque converter clutch (TCC) engagement and reliability\u003c\/li\u003e\n\u003cli\u003eRaises lube circuit pressure from 6 psi to 20 psi\u003c\/li\u003e\n\u003cli\u003eIncreases overall line pressure by up to 60 psi\u003c\/li\u003e\n\u003cli\u003eReduces clutch regulator valve engagement pressure from 120 psi to 80 psi\u003c\/li\u003e\n\u003cli\u003eShortens shift times and reduces clutch wear\u003c\/li\u003e\n\u003cli\u003e250% increase in cooler charge pressure for better transmission cooling\u003c\/li\u003e\n\u003cli\u003eRecommended for towing, street performance, and racing applications\u003c\/li\u003e\n\u003cli\u003eNot a simple pressure bump, multi-faceted internal oil circuit upgrades included\u003c\/li\u003e\n\u003cli\u003eBuilt-to-order product with up to 15 business day lead time\u003c\/li\u003e\n\u003cli\u003eRecommended for trucks making 800+ HP with proper TCC tuning\u003c\/li\u003e\n\u003cli\u003eIncludes built-in bypass to manage excessive pressure above 420 psi\u003c\/li\u003e\n\u003cli\u003eProp 65 warning label\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SunCoast Performance","offers":[{"title":"Default Title","offer_id":53527106617628,"sku":"SUNSC-10L1000-PVB","price":2517.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/F198653099.jpg?v=1765839950"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/collections\/GM_Duramax_Transmission_Module_Thumb_1.jpg?v=1728498746","url":"https:\/\/www.alligatorperformance.com\/collections\/2020-2026-gm-duramax-66l-l5p-transmission-modules.oembed","provider":"Alligator Performance","version":"1.0","type":"link"}