Brand: Allstar Performance Manufacturer's Part Number: ALL64174 Part Type: Coilover Components Product Line: Allstar Performance Replacement Coilover Tops Automotive Fittings Part Number: AAF-ALL64174 UPC: 848238034936 Coilover Component Type: Shock top Quantity: Sold individually. Notes: Replacement top for steel Penske shocks. Description: Allstar Performance replacement coilover tops are made of aluminum and are powdercoated black. They are slotted to allow for quick and easy spring changes. When it comes to replacement coilover tops, Allstar Performance has you covered.