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  • Dealernews
  • Sep 16, 2022




What does the Fox say? “Don’t Fear The Fade” is the watch word for the Sand Sports Super Show and Fox unveils its ECS2 Cooler system this afternoon. Extreme heat can push shocks past their ideal operating zone, resulting in shock fade. The ECS2 Cooler functions as a heat exchanger, reducing shock oil temperature so damping force stays more consistent. The “cool factor” actually functions as well! During development, test engineers observed more than a 70°F drop in shock operating temperature in both dyno and field tests.

“I now have five races and more than 2,000 race miles on the FOX ECS2 coolers, including the rough terrain of The Mint 400, the relentless heat and whoops of the Baja 500, and the unforgiving Vegas to Reno desert race,” says Branden Sims. A 2X Baja 1000 and 2X Baja 500 champion, 2X Mint 400 champion, Best in the Desert Pro Turbo UTV champion and UTV World champion, Sims knows what he is talking about. “I’ve been running the FOX ECS2 coolers on my race RZR since March with no issues or failures. The FOX ECS2 coolers have given me the confidence to push harder and faster in the rough terrain, knowing that I’ll have more control due to better shock cooling and less inherent shock fade.”

Best of all, you can retrofit the ECS2. The cooling system can be added to most 2.5- or 3.0-inch diameter FOX UTV shocks and relies on a check valve to produce unidirectional oil flow. As the shock compresses, oil flows through the ECS2 Cooler and dumps into the reservoir. On the rebound, cooled oil flows back into the shock, maintaining optimal damping function.


• Unidirectional oil flow

• Impact extruded 6063-T5 aluminum alloy housings

• Internal and external fins for maximum cooling surface area and heat dissipation


• Maintain consistent damping force

• Longer service intervals in extreme heat conditions

• Better performance for racing and riding at high speed for extended durations

Professional installation required by Shock Therapy in Phoenix, Arizona or the FOX Midwest Service Center in Baxter, Minnesota. Fitment options and pricing are based on your existing FOX shocks. See it for yourself at Sand Sports Super Show or click here:


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