Bilsteins 6100 Series Shocks are the most successful shock in off-road racing history. Conceived in the early 1970s, Bilsteins 6100 shocks have equipped more winning off-road trucks and cars than any other shocks. Today the 6100 shock is still meeting the demands of off-road recreational vehicles like forerunner trucks, Baja bugs, rockcrawlers and sandbuggies. The 6100s features include: Monotube gas pressure construction, Threaded Body Lengths to 10" Travel, Self-Adjusting Deflecting Disc Valving, 12" Diameter Shock Body, High-Flow Piston Reduces Harshness, Factory Rebuildable, Spherical bearing end loops that accept 1/2" and 12mm mounting bolts, Available for standard and coilover applications and this series is primarily designed for vehicles with modified shock mounts and Type I VW suspension.
These are darn good. Expensive for what you get. For the price I would expect a beefier shock. I blew one out after 80k miles. I do a lot of offroading. Not necessarily 4x4ing, but offroading. Fast moving, washboard of all kinds. Mojave Desert stuff.
While the ThyssenKrupp Bilstein Company began as a German enterprise, Bilstein shocks are developed and manufactured in Hamilton, Ohio. Bilstein develops and fabricates premium quality monotube shock absorbers directly for automobile manufactures, aftermarket outfits and motorsports applications. The precision and craftsmanship in manufacturing that fueled company growth in Germany were brought straight to the factory in Hamilton, Ohio. The factory includes an engineering department, rigorous shock testing facility and a motorsports track. The track allows the engineers to tweak their designs in response to real world testing during development. The rigorous testing allows for designs to go through a machine simulated life of a shock absorber in all kinds of terrain conditions. The resulting products promise the highest in performance. Shop Bilstein Now