Package Dimensions: 19.812 H x 36.322 L x 36.322 W (centimetres). Country of Origin : United States. Fit type: Vehicle Specific. Package Weight: 15.1 pounds.
As the name suggests, they really work. Assuming you want a car that's slammed shut. And you need extra front springs. And taller spindles or ball joint spacers. And drag shocks (90/10 front, 50/50 back squats). And lifting drawbars.