All EFS Coil Springs are:
Shot Peened - To stress relieve the outer surface of the Coil, so the Coil can operate under higher fatigue & repeated load conditions to ensure longevity.
Scragged for Quality Control -This is a process where the Coil is compressed beyond its yield point; this compression will set-up residual stresses and increase the elastic limit of the spring.
Powder Coated - To resist corrosion & to protect the spring steel from minor damage.
EFS Coil Springs are manufactured under a strict quality control system with the use of quality Spring steel in accordance with ISO-9002.
This ensures you are purchasing a high quality product that is backed by a 3 year/100,000km warranty.
EFS Coil Springs are produced in a variety of raised heights, From standard to 125mm & also a variety of spring rates to suit different applications - Towing, Load bearing accessories, Increased ride height & Competition.