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Anyone have any experience with the PSI power performance module? https://www.extremeterrain.com/psi-power-jeep-gladiator-electronic-performance-module-64300.html

Bear with me but I have 24 Willys Gladiator with 285/70/17 tires. I noticed even before upgrading tires (had 255/75/17 prior) that the transmission would downshift to 7th and sometimes 6th on slight inclines on the freeway (annoying). When switching to manual shift and putting the gear back on 8...