Suspension Shock Absorber EM46-D90N0 9 Inch Digressive non-adj emulsion Monotube EM46 Series BilsteinBilstein EM46 Series shock absorbers are emulsion dampers that feature an all steel smooth body construction and 46mm piston for motorsports applications. The shock absorbers also include a large 22mm shaft, severe duty 3 stage high temperature rod seal and can convert to coilover usage (kit sold separately). EM46 Series shock absorbers are ideal for racers looking for a rebuildable shock with the ability to create and fine tune spring rate as a