21700 - 2017-2019 GM 6.6L Duramax L5P

In stock


2017-2019 6.6L GM Duramax L5P Engine 



Up to 90 Horsepower Increase and 1-3MPG Fuel Savings 




Categories: Truck , General Motors , 6.6L Duramax , L5P

The 21700 Performance Module fits 2017-2019 6.6L GM Duramax L5P engine. This diesel performance module is designed for fuel economy with up to 30% increase in hp and fuel savings up to 10%-20%. Adjustable with a four position switch you can adjust the power on the fly, Stock, +30 HP 60 HP, & +90 HP. The module doesn't flash the ECM, instead it receives the data from the ECM, optimizes the signal to the engine improving the fuel efficiency and power. So it does indeed promise to pay for itself in pretty short order. Plug-and-play connectivity means there’s no need to cut, splice or modify engine wiring.

Best of all, all of our modules come with a Lifetime Warranty.

Warning: Cancer and Reproductive Harm

Install Videos

2017-2019 GM LP5 Duramax - Installation
2017-2019 L5P Duramax Dyno Run: Stock vs.High Mode

Install Instructions

Install instructions
More Information
Light Duty Truck Engines General Motors
Years 2017
Light Duty Truck Engines Duramax 6.6L L5P
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