I bought the Timbren Suspension Enhancement system for my leased truck but decided not to keep the truck. I only used it for 2 months and had great results (avoiding excessive truck squatting on the rear axel).
Super ease to install. The manufacturer (Timbren) has a video in their website.
Fit All Toyota Tundra (2WD & 4WD) from 2022 to 2025.