I did the same to my new JT. Running 38 15.50 on 20s.
The install was a PIA for me. The plugs on the back of the motor are buried. We had to remove a bunch of stuff to get to it. Super frustrating and time consuming.
However…. Worth it.
The difference is huge. Coupled with the pedal monster it...
Do you use a splitter to run them both at the same time or how does it work? Not used to paying this much for a tune but I don't have much choice. Put 4.5 lift and 38s and speedo is so off its amazing..