2017 - 2023 GM 6.6L L5P Duramax | Transmission Tuning by PPEI
PP-17-23-L5P-TTExtend your L5P Duramax's transmission's life and increase your fuel economy with PPEI's T87A/T93 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 PPEI RTD, HPTuners MPVI2/3.
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Customer Reviews
I was on the fence about getting the transmission tuning on my 21 L5P but I'm so glad i did. It made a world of difference in how the truck shifts. Pulling a trailer it holds the gear instead of constantly downshifting. I never do online reviews but I was so impressed I had to review this one
You can feel the difference and this is on a stock truck! ECM tuning is next on the To Do List Great Tech Support.
I blame myself for not buying this sooner. Night and day difference, this is your sign if you're debating on getting the trans tuning, buy it now you won't regret it. 1000x better.
Love it
Transmission shifts so much better, tunes are great customer service was even better! Logan was such a huge help!
Wish I I had done It sooner!
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.