Bump stops produced by Energy Suspension are simple but powerful components. The bump stops are specially made to guard the suspension against serious collision and so are made from tough Hyperflex polyurethane. OE bump stops are usually made of rubber and are pre-installed on some vehicles. The rubber bumps are good as it can absorb and re-direct impacts but these rubber parts never last long as it cracks and gets damaged leaving the suspension exposed. Bump stops made from Hyperflex polyurethane are resistant to both road contaminants and physical wear. Replacing OE bump stops with Energy Suspension hyper flex polyurethane will give protection for a longer period.