SuperPro acknowledge spacer lifts have an ugly past. Typically they have not been properly engineered or tested by the manufacturers/importer. We have also seen manufacturers make these kits to lift vehicles beyond a safe or legal lift. SuperPro has done the engineering work to get these kits right! We have incorporated each vehicles suspension geometry into the design of every kit including consideration of the solid height to ensure the shock absorber does not bottom out before it strikes the bump stop. The lift height of each kit is unique and the associated hardware is designed and engineered to be safe and legal. No other spacer lifts on the market achieve what SuperPro has.