Ichiba Version II 25mm wheel spacer for Subaru (5:100 / 56 Bore / 12x1.25 Thread Type) for Subaru Impreza 02-07 (RS / WRX), Impreza STI 2004, Forester, Legacy Outback Note: Sold as a pair. Version II wheel spacers are made from Aluminum/Magnesium alloy. They are incredibly strong and very lightweight. Every spacer is a two piece design with pressed studs. Spacers bolts onto the existing studs. These are hubcentric spacers that is vehicle specific; will fit onto your vehicle's original hub perfectly without any gap. Wheel spacers move the wheel out from the hub, effectively widening the stance of the vehicle and lowering its roll center. This simple modification increases lateral stability, which in turn provides improved handling & greater safety.