oh forgot to say, the HPI upgrade shocks are the best ive ever seen, the quality in unmatchable, the main body is aloy, with a plastic endcap, oil filled with a speical tool to remove cap for servicing, 24 diffrent rate springs (216g/mm to 540g/mm etc) thay have the normal adjustable spring tension as well as adjustable shock length
"Bolt a set of Adjustable Height Shocks to your E10 for increased suspension performance, extra adjustability, custom looks and faster lap times! These shocks have threaded aluminum bodies and an adjustment wrench for fast ride height adjustments, just like coilovers for real cars! Standard features include silicone shock oil for consistent damping over a wide range of temperatures, an internal bladder to prevent oil frothing, silicone o-rings for smooth movement, and street tuned springs. Not only do they add performance on the street, they look fantastic too! They come pre-assembled to exact HPI factory specifications for a quick and easy "bolt-in" fit."