EFS shock absorbers have not only been designed and manufactured in Australia, but also rigorously tested across this vast continent, famous in the 4x4 world for offering the most extreme off-road conditions.

Each EFS component has been developed specifically for each individual vehicle and elevation to ensure a perfect fit and maximise axle articulation. The extra-reinforced construction of high quality internal and external components prolongs service life, prevents fade and increases damping control in special conditions both on and off-road.

The EFS X-TREME racing shock absorbers have taken several years of development and testing.

During this time they have been tested in countless off-road trips, extreme 4x4 situations and competitions as tough as the Outback Challengue, exceeding all expectations, and withstanding far more than a normal 4x4 shock absorber could handle.

Its twin-tube, fully hydraulic (no gas) design, special high-temperature fluid, 45mm piston, 20mm piston rod, 2mm steel wall and oversized mounts make the EFS X-TREME one of the strongest shock absorbers on the market.