When hotchkis decided to manufacture coil spring for the 09-Challenger RT. They took their time and researched other springs on the market. With those springs in mind they found a great combination of performance and comfortable ride characteristics. The springs feature a linear rate design, and come complete with urethane bump stops.
Not for vehicles with load leveling suspension
RT Models - Front 1 7/16", Rear 11/16"
Rear: 650 lb