2017 - 2019 GM 6.6L L5P Duramax T87A | Transmission Tuning by PPEI
2017 - 2019 GM 6.6L L5P Duramax T87A | Transmission Tuning by PPEI

2017 - 2019 GM 6.6L L5P Duramax T87A | Transmission Tuning by PPEI

PP-T87A-BF

Have your TCM flashed by us in-house. No charges for credits or unlock.

Optimize shift points, line pressure, converter lockup, increase efficiency, and utilize adaptive shifting.

This is not an unlocked HP Tuners TCM.

Sale Sold out

Customer Reviews

Based on 4 reviews
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Philip Peacock
2018 L5P Allison transmission tuning

I am impressed to say the least. The transmission tuning gave my truck what it was lacking nice firm shifts and a great feel on downshifts during hard acceleration while passing cars. I am currently running with the edge evoht2 but in the near future I am 100% switching to PPEI ecm tuning as well. The trans tuning was my first ever PPEI purchase and I must say it lives up to the hype.

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Dustin Glotzbach

The new tunes work great and have a lot longer shift points when pulling my trailer. Fast shipping too!

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Jesus Colina
L5p tcm tuning

After a couple weeks running the truck with the tcm tuning I feel like the truck shifts a lot better, it’s smooth and quick. I can also feel the truck has some more torque. I love it

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Jared Gribbins
Tcm tune.

Truck runs and shifts wayyyy better now with the ppei tcm. Definitely worth the money and super super easy to install.

WHO IS THE TUNER/CALIBRATOR

PPEI, also known as Power Performance Enterprises, Inc., is led by the business owner and lead calibrator/tuner Kory Willis. PPEI began calibrating/tuning back in 2008, specializing in Diesel Performance but has since expanded into the Gas and Powersports industries. Kory and the team at PPEI have set many world records along with continuing many industry “firsts”. We take pride in knowing that Kory not only prides his work, but also thoroughly enjoys setting expectations high for our team so our customers can have the best products available in the world.