Ironman 4×4 FoamCell shock absorbers take things up a notch. In addition to unique Foam Cell technology, Foam Cell shocks are a larger diameter, which when combined with the foam cell, allows the oil more contact with a greater surface area of the shock, which in turn provides better cooling. Foam Cell shocks also have a larger rod and piston which makes them even more robust and allows for greater valving by our suspension specialists.