SFI Approved Lightweight Seat Insert Kits & Head RestraintBSCI has implemented the use of EIS W50 SFI 45. 2 Approved foam in molded seating applications where ultimate fit, comfort and most importantly, where safety is desired. EIS W50 is used widely in the motorsports industry for energy management in head impacts. This foam technology has enabled BSCI to develop the use of this same material for use in molded seat inserts to help manage the forces exerted on a driver's body during crashes. Seat inserts