This Porsche Boxster 986 and Boxster 987 roof skin was originally designed for the 986 Boxster Spec series and is made from hand laid fiberglass with a reinforced foam core inner panel for greater strength and light weight. It fits both the Porsche 986 and Porsche 987. GT Racing recommends the lightweight poly-carbonate rear window, (Racing Part #657) and window fasteners (GT Racing Part #656F). Note: Race cars only. Approximate weight is 13Lbs.