All pieces for both styles now accurately reproduced by Corvette Parts Worldwide! Our foam can be purchased by the piece or in complete sets, 4-piece for Standard and 6-piece for Sport. For both styles, the back bolster pockets are mesh reinforced to help prevent tear out, a common problem on the original foam. Correct size, shape and foam density. Correct hook fasteners, embedded in the foam, not glued on the surface. Molded in trim lines on the bottom pieces to aid in trimming for power seat controls.