The Firestone Coil-Rite rear air helper spring kit for 2007–2017 Toyota RAV4 fits inside the rear coil springs to provide tunable support for cargo and passenger load changes. The kit includes air helper springs, supports, hardware, air line and inflation valves and installs without drilling. By adjusting air pressure, drivers can maintain a level ride, improve braking and steering balance, and reduce tire wear.
Firestone Coil-Rite Air Helper Spring Kit Rear 07-17 Toyota RAV4 (W237604174)