Stealth Module - Chevy/GMC Duramax LML 6.6L (2011-2016) PCM +30 Horsepower on MS109 /

+30 Horsepower on MS109 / Race Gas

it requires a Hellcat heat exchanger and some additional hardware

and credits

"Take your power back with the Stealth Module exclusively for (2020-2022) Ford Powerstroke V6 diesel trucks

Stealth Module - Chevy/GMC Duramax LML 6.6L (2011-2016) PCM +30 Horsepower on MS109 /"Take your power back with the Stealth Module exclusively for (2011 2016) Chevy GMC Duramax LML diesel trucks. This module is a stand alone computer that is placed under the hood of your vehicle with no additional supporting modifications or monitoring necessary. Get the most out of your vehicle's performance while remaining warranty friendly. Works With: Duramax years: 2011, 2012, 2013, 2014, 2015, 2016 Chevy GMC Duramax diesel models: 2500, 3500,