Works exactly as designed, keeping truck on all eight cylinders and eliminates gear searching. Drives like an entirely new truck and doesn't seem to affect gas milage. Oh, my darling. Where were you 70K miles ago?

Bought this for our 2018 gmc Denali 6.2. It does exactly what it's supposed to do. Plug and play. Hopefully the lifters live a long life

Since I got my 2013 silverado I have hated the v4 flex mode on the truck. To me it seems unnecessary and just leads to more motor problems down the road. So this disabled that and I'm really happy with its proformance and my trucks running better then ever!!

I used this with a 2019 gmc Yukon Denali xl with the 6.2 and works just as advertised with no CEL or issues.

Works PERFECTLY and no programming has to be done!! LOVE IT!!!

Product performs as promised,I just plugged it in and it deactivates the fuel management.Much nicer operating vehicle without have to come out of 4 cylinder to 8.

Easy plug and play. My 2014 Silverado 1500 stays in V6 mode and does not switch to V4. I no longer get the vibration when switching to V4.

Plugged it in, It started reading and then the far right Light just stayed on. Three lights never came on while driving, I have a 2003 Chevy Silverado, this thing did nothing performance wise nor gas mileage wise. Waste of money!

I installed the device in my 2017 Chevrolet Silverado about a month ago. I have always hated the v4-v8 conversion since the day I bought the truck. I had to get a new transmission at 110,000 miles and the mechanic told me to purchase one of these to prolong the life of the new one. he said it is the worst thing gm ever put in one of their vehicles and causes a lot of issues. I haven't been in v4 mode since installing this device and it is amazing! Buy one!!!

2010 Escalade ESV, from the get go I could tell the difference with it plugged in. Definitely worth it.