Rear air overload springs by Firestone are the best way to add extra load capability if you are really loading up for the weekend. Our standard Northwoods Performance springs are stiffer than stock to provide great handling on the street and trail, and increased load capability. But if you are really loading up your Lexus with gear and friends, these fully adjustable air bag helper springs will help handle the load. Then air them down for your weekly commute and enjoy our firm but comfortable Northwoods handling.

Contact us for shipping rates outside of the US and Canada.


  • Kit includes:
    • Two Air Bags for Installation Within the Rear Springs
    • Upper and Lower Mounting Brackets
    • Tubing and All Mounting Hardware
    • Two Fill Valves
    • All required hardware
    • Full Installation Instructions

*We include an optional tee fitting to allow filling and balancing pressures in both air springs at once as part of our kit.

Additional information

Weight 5 lbs
Dimensions 21 × 9 × 5 in


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