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Phone: 780-621-7143

Custom Powertrain Programming and Diagnostics

Paynton Performance custom tuning covers all 2001 to 2010 Duramax and 1996 to 2011 GM products

Authorized Dealer for Tuning

We can source and install Wester's Garage custom tuning in pretty well anything!

Click here to find out more about Custom Tuning

Click here to check out videos on my YouTube Channel!

Latest News:

2011-2012 Duramax LML and LGH: We have NO tuning support for these Duramax products. GM has become aggressive at locking us out of this ECM. Check out this link: http://forum.efilive.com/showthread.php?17316-Possible-ways-of-tuning-the-LML
A few recent customer testimonials:
"Hey man just wanted to give you an update on the truck, it runs absolutely amazing. My speedo is within .1km and my truck has more than enough power after the tuning. I have raced a few stock height half ton chevs and fords, and I walk all over them lol. I'm usually 2-3 car lengths ahead of them after a 1/4 mile, depending on if they have anything done to the truck lol. They are usually emberassed. The shift points are perfect." - Derek
"Hey Joel, went out for a drive and.........this thing rocks. I absolutely love it, the acceleration is much better, the engine is so smooth and the power band is great. Thanks so much." - Carman
"Anyways I slapped the tune on the truck it's excellent man. Didn't bounce of rev limit, works flawlessly. Little bit touchy on the pedal, I'll get used to that tho. Kickdown's are perfect, t/c set perfect.ECM seems ALOT smoother power. Nice tune man thanks. If anybody asks me where to go you know what I'll tell em'. Got a question, can you tune hemi's??? My buddy wants to know...if so you got another tune to build! Thanks a million" -Chase
"Thanks for all your help. Took it for a 10 mile test drive. Completely different response. No surging like the EZ. Up shifting and down shifting different but very smooth. Boost pegs my gauge at 30 when I put my foot into it. Power seems to get progressively stronger. The exhaust even sounds different. Can't wait to try it towing. I leave on a trip to FL. in 2 weeks. Will send you updates. Thanks again" -John
Some Tuners are not all that they claim. Anyone who offers pre-programmed Duramax ECM's for 2006 and newer Duramax trucks is not programming them properly. These ECM's have built-in parameters that are specific to each engine, namely, the injector flow rates. We will only supply an ECM for these trucks if we can program correct injector flow-rate data.
Trying to dodge GM Warranty by hiding a non-GM ECM calibration is a gamble! GM has other ways of detecting an aftermarket engine or transmission calibration, and will generally only use those means with a major component failure, but be duly warned that installing any non-GM ECM calibration can potentially void your warranty in the right (or wrong, depending on your viewpoint) circumstances. We cannot offer any kind of powertrain warranty with our tunes, but we do have considerable experience in knowing what are safe limits.
We supply stock replacement and tuned ECM's for any generation of Duramax.
LMM Duramax diesel trucks are not known for good fuel economy. We have a proven tune that improves overall economy by about 10% without any exhaust system changes.
We do diesel tuning with a Chamber Pressure Monitor - A chamber pressure monitor is a special tool designed to log and monitor actual combustion pressures in a diesel engine. All of our tunes have been validated with this tool to be safe for your engine and head gaskets.
Check out maxxTORQUE magazine, the online magazine for GM Diesels, with articles written by GrandMaster Duramax Technician Joel Paynton. There is a wealth of technical information accumulating as this magazine matures, from Duramax common Issues and Answers, along with popular modifications. This is the only "real-world" technical magazine that focuses on helping everyday GM Diesel owners and operators.