Londart2020 Posted October 31, 2020 Share Posted October 31, 2020 Does anyone on here have experience running the "stealth Diesel" tuner? Looks too good to be true, but also along the lines of the Banks Derringer. https://www.stealthdiesel.com/stealth-performance-module-2019-2020-chevy-gmc-duramax-l5p-6-6l/ Quote Link to comment Share on other sites More sharing options...
gSwift Posted October 31, 2020 Share Posted October 31, 2020 Theres an ongoing thread about the Stealth Module in the "mods" section. Quote Link to comment Share on other sites More sharing options...
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