EFILive AutoCal V3

I am very happy with the tunes and the Efi live Autocal v3. Everything works great and very responsive.

Worked great made the truck perform better.

Excellent service, great knowledge on their products! Fast shipping! Everything went as it should product works great thank you for the support and quick response

2016 LML Duramax with trans tune and light tow tune. So far so good. No issues at all. Doesn’t smoke at all which I love.

This product is awesome. Arrived in 3 days, high quality connections, super easy to install with really easy to follow directions, truck has tons of power and sounds sweet. nothing sketchy or bad sounding as in over fueling cylinders or way to high of revving. If you have bigger then stock tires I would highly recommend trans tuning because tune 4 and 5 is rowdy on stock truck. Will definitely be buying again. Using it on my off-road only truck 😏😏