Firestone Coil-Rite Air Helper Springs Firestone air helper springs are designed to fit inside existing coil spring suspensions, creating a variable rate spring. These air helper springs are made of durable, elastic polyurethane providing years of comfort and stability to your vehicle. Coil-Rite air helper springs provide extra support for coil springs in cars, minivans, vans, light trucks, RVs and SUVs. The complete adjustability of these air helper springs will level your vehicle, provide a smoother ride, more effective braking and handling, even under heavy loading and adverse road conditions. Firestone’s Coil-Rite air helper springs enable adjustment for varying loads and road conditions by inflating or deflating the air helper springs. Spring performance can be altered as easily as inflating a tire. The air springs will support 500-1000 lbs per set.(Note: Do not exceed the vehicle’s recommended Gross Vehicle Weight Rating) Basic Kit includes everything for a quick installation: 2 Air springs Supports Hardware Air line Separate inflation valves for manual inflation Average Installation time 1 hour Features and Benefits of Coil-Rite air helper springs and air bag kits Increase Vehicle Stability Improve steering and balance Improve braking effectiveness Prevent bottoming out Maintain a level vehicle Keep headlights aimed on the road Reduce tire wear Firestone Limited Lifetime Air Spring Warranty Firestone Industrial Products Company LLC (“Firestone”) warrants that its Ride Rite Air Spring Assembly will perform according to the manufacturer’s specifications for as long as the vehicle on which the system was originally installed is owned by the original retail purchaser. This limited warranty does not include installation or other service charges for replacement. Warranty Period The Air Spring is warranted for as long as the original purchaser owns the vehicle on 2 Year / 200,000 mile warranty.