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L5P (2017 - 2020)

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Duramax L5P Tuning (2017-2020)

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L5P (2017 - 2020)

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Duramax L5P Tuning (2017-2020)

Improve the performance of your 2017, 2018, 2019, or 2020 Duramax L5P.

In 2017 GM introduced the L5P Duramax engine to their 2500 and 3500 pickup vehicles. The L5P boasted significant improvements in engine design over its predecessor, the LML Duramax engine. The L5P Duramax features a redesigned DPF, SCR, DEF and EGR system, a significant increase in OEM power over its predecessor, completely redesigned turbo, and various other engine configuration changes.

Delete everything else you have heard about L5P tuning; Motor Ops has you covered for all of your L5P custom tuning needs.

You’re looking for a tuner for your Duramax L5P, and our complete tuning packages include HP tuners MPVI2 hardware, a choice of an L5P ECM exchange or a modified ECM purchase, a CAN Communications harness, and required HP tuners universal credits.

We recommend purchasing a modified L5P ECM from us, that ships within 48 hours of order. The ECM swap or exchange requires you to remove your ECM and ship it to HP Tuners. You will wait 3 to 8 weeks for them to ship you back a modified ECM, and during this time, you cannot use your truck.

TCM unlock and transmission tuning is available for the 2017, 2018, and 2019 models. Transmission tuning is not yet available for the 2020 Duramax L5P. The TCM swap is similar to the ECM swap; we recommend that you purchase the modified T87A TCM from us instead of sending in your OEM TCM and then having your vehicle down for the processing and transit time.
Motor Ops offers 4 tunes for the L5P: Our tow tune optimizes performance to tow up to the GVWR (Gross Vehicle Weight Rating). A wider torque curve improves drive-ability while towing and adds 90 RWHP and 120 ft-lbs of torque. Sport Economy and Race tunes are designed for off road use and may be restricted where you live. Sport Economy adds 140 RWHP and 300 ft-lbs torque over factory. Race puts your vehicle near the 600 RWHP 1360 ft-lbs mark.

Motor Ops tunes are clean running tunes and, in many cases, produce less smoke output than a factory calibration does. Our tow tunes are proven to have EGTs 100* F lower than a factory calibration under load. Our tuning achieves market leading power gains without running high timing rates like many other tuners do; in fact, our tuning is within 2* of the OEM timing maps. All of these things will keep your truck on the road and prevent premature wear or engine failure on your L5P.

Our tunes are currently not switchable on the fly. You can flash each tune in using the MPVI2 for specific use. When they become switchable, we will notify our customers for the upgrade.

Read our Duramax L5P tuning tips blog and contact us by phone for advice before purchasing.

Use the drop down selector to choose your model year and tune selection, and order your Motor Ops L5P tune today!