- Modified JK Tech
(https://www.jk-forum.com/forums/modified-jk-tech-2/)
- - 4:88s or 5:13s ??????
(https://www.jk-forum.com/forums/modified-jk-tech-2/4-88s-5-13s-64759/)
7Slots
Dec 16, 2008 08:34 AM
Originally Posted by BLKRUBICON
(Post 841728)
Your best best is to buy the Hypertech Econ Max Power programmer. This will not only adjust your speedo to where it should be for the tires but it will also set your auto shift points to where they should be for the gearing. Dealership cant do that. Need an external ECU or programmable computer to do it for you
Thanks for the info, I thought that would be the answer just wanted to make sure before i spent the money for one.
