Duramax 6.6 L5P – GM Silverado HD/Sierra HD – Projects released.

Please Note that disabling the Emissions may not be street legal in your country or state. All emissions deletes should be used on OffRoad/Racing vehicles only!

Chevrolet/GMC “L5P” 6.6 Duramax engine using E41 ECM is now supported with XDF file to be imported in HP tuners VCM suite using “User defined parameters”. The projects contain also CSV file with all the needed modifications for Emissions delete for Off Road/Racing use. There is also available OLS file with all changed maps defined containing Full emissions delete and Power stage 2 inside. Supported Operating systems are: 2017 – 12666734, 12690762, 12697840, 12709843; 2018 – 12690763, 12697841, 12709844; 2019 – 12692043, 12698595, 12699524, 12704854, 12709842; 2020 – 12704584, 12706544, 12708517

2017, 2018 and 2019 Operating systems are supported with a complete DEF Message reset parameters, XDF and instructions

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