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I don't post much here but I'll let you know I purchased both the beginner and the advanced guides from The Tuning School. It can be a bit costly but having the actual information required to make...

As I am one of the few (many) LLT V-6 owners that cannot access our E69 ECM, will there be ANY way possible to come up with an option or a beta version that would allow us to access the TCM for the...

Don't worry Pwayne, you're not alone..

They're probably too busy working on all the Chrysler/Dodge support they keep promising..

For the admin: When can we expect support for the LLT engines, specifically the 2010-2011 Acadia/Traverse/Enclave and Camaro. Not being able to adjust the shift points on my Acadia is killing my gas...

Where's your scan?

Sorry Cousin, couldn't resist. Did you update your regular shift pressures to match the Brake-Coast table yet? I believe that will correct the issue. Keep me posted.

My cousin, fellow member "LEDbetter," set up a histogram to measure horsepower. I use this as basis for a guage to track it. My question is: do these numbers represent RWHP? It's definitely closer...

I had the same issues when I changed my CTS-V from the stock 3.73 to a 3.42 rear diff. It would display 71 mph at 2000 rpm, but my GPS was showing an even 80. My mileage was also coming up short as...