HPI E-Firestorm owners now have the option of stiff Composite Rear Suspension arms. Long-fiber composite strands are used for extra reinforcement, making them significantly stiffer than the stock nylon parts for quicker and more accurate suspension response. They're direct bolt-on replacement parts, precision molded to exact HPI factory specifications for a perfect fit.

The Composite Rear Suspension arms fit E-Firestorm trucks and can also be used on Nitro Firestorm trucks. Left and right rear suspension arms are included.