[zr1mom]

There are no ZR-1 specific windshields left in stock. What I'm sure they are quoting you is a standard C4 windshield. Also remember there are 2 different ZR-1 windshields, small cutout, later years, and large cutout early years. Did they give you a price?
If around $500 then it is a C4 windshield. If around $2000 then it might be a ZR-1 windshield.