2011 - 2015 GM 6.6L LML Duramax A50 | Allison Transmission Tuning by PPEI
2011 - 2015 GM 6.6L LML Duramax A50 | Allison Transmission Tuning by PPEI

2011 - 2015 GM 6.6L LML Duramax A50 | Allison Transmission Tuning by PPEI

PP-A50-TT

Extend your transmission life and increase your fuel economy with PPEI Transmission tuning! A MUST for tuned trucks with additional torque.

PPEI was the first to offer transmission tuning for these new allisons and we have not let off the throttle since!

The refined shift points get rid of the low rpm “Lazy” feel these trucks have that force the driver to stab the throttle for a downshift – not cool and a fuel economy killer! For vehicles with larger turbochargers, ppei transmission tuning is a must to get the engine back into a rpm range to match the torque curve of the new turbo.

Along with the improved shift points, PPEI also refines the torque converter lockup strategy to put the power to the ground much more efficiently for improved fuel economy by eliminated unnecessary slip in the torque converter – which also drives down heat in typical “unlocked” conditions.

Lastly (and possibly the greatest benefit) is the increase in line pressure ppei provides. line pressure increases the holding capacity in the transmission by clamping the clutch packs together with more force – this allows tuned trucks (or trucks towing heavy) to have the confidence they need to enjoy their truck for years to come.

This tuning package can be installed using an EFILive AutoCal V2, FlashScan V2, AutoCal V3, PPEI RTD, HPTuners MPVI2 or EZ LYNK AutoAgent 2.

$0.00 USD
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Customer Reviews

Based on 18 reviews
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(16)
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B
Brent
LML TCM Tune

I recently swapped over from another company’s TCM tune to PPEI’s. PPEI’s customer service is top notch firstly. Their TCM tune works well, coupled with their ECM tune. Shifting at part and full throttle is great. Shifts/torque converter engagement is more firm. I’d like to see lower rpm shifts at light throttle as it can feel sometimes like the truck is in tow/haul shifting at 2500 rpm at times unnecessarily around town depending on throttle input. Aside from that, this TCM tune works much better than my prior one.

We appreciate the kind words and feedback Brent! We'd love to work with you and revise the tuning to your liking! Reach out to our tech team via this link and we'll be happy to do this; https://ppei.com/pages/contact

M
Michael Bowers

The best in the business…

K
Kim Hougland
LML Trans tunes

There was a very big change in how my truck performed after I installed the tunes. Was very happy with the outcome. I was not expecting that much of a change. Now I need to pull my toy hauler to see how it pulls through the higher altitudes.

B
Brad Lane

Day & Night Difference! Anyone thinking about it, Just do it! You will not be disappointed!

E
Ethan Davis
Should be required by the factory

This trans tune for my 2011 Silverado 3500 Duramax/Allison is great! I didn't realize how much slippage the oem tune was allowing. It feels like I've got manual transmission power to the wheels. Highly recommend to family and friends! The factory should've started by using PPEI's tune from the get go.

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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.