Evening Lew. I'm running 91 Octane. I just couldn't see why I lost so much on the gas mileage end running all interstate. The engine is running stronger but I was after some fuel economy as the 6.2 has plenty of power for me. I'm going to pull the load out and retest and see if I get my prior ...

I bought the unlocker kit and i-3 for my truck. I loaded the 87 tune for better fuel mileage and more torque in. I took a 80 mile road trip soon after and found I dropped about 3 mpg on my 6.2. When I had the old tuner installed on my 2018 Yukon with the 6.2, I was able to increase my gas mileage by ...

Just bought a new unlocker kit and I3 for my 2021 Silverado. It unlocked the ECM after about an hour then showed in recovery mode. Came up saying it could not find the backup for a restore. I hooked up the Tranny for its unlock and it started again in recovery and would not allow it to unlock the ...

Thanks Lew. I was getting ready to purchase the I3 and a buddy of mine told me he new someone who purchased one of the kits I needed. I talked to him and he said he purchased it off your web site. He sent me a picture of his kit. It all looked like it was there but the box that the I3 was in had ...

Does anyone know the difference between the 8225-DS & the 8225-R? I saw a 8225-DS for sale that is supposed to fit the same trucks as the 8225-R does? 2019-2022 Chevy Silverado

Any idea when 2023 6.2 might be supported?

Are they working on something for the 2023's?

Are you guys any further along on this project to allow us to tune our newer GM vehicles? I now have a 23 Yukon xl with the 6.2. It gets horrible gas mileage because I can't tune it. These green weinies talk about what they are doing to be green and all they have done is make the vehicles use more ...

Man, we really need someone to come up with a way in to these 2020, 2021, & 2022 Suburbans and Tahoes. I lost 4 mpg since I have been unable to tune my 2022 Suburban over my 2018 model. Need to be able to shut off the GM's bs cylinder deactivation too. Help.

Have you made any progress?

When will you have software out to cover the 2021 Suburban with a 6.2? These engines run like crap because they always seem to be in 4 cyl mode. My gas mileage has gone from 22 on the highway to 18.5 compared to what I got with my 2018 Yukon with a 6.2 with the gas mileage tune. These vehicles that ...

Mike,

Has this bug been fixed? I'm going in today to redo mine if you have updated the software to be rid of that bug?

My file sent as well for 2016 Yukon XL Denali 6.2

Any updates on 8 speed Tranny ?

Any estimate on completion. This 8 speed tranny is junk without a tune!!!!