Used LSA supercharger lid. Removed from a 2012 CTS-V with 29,000 miles. Good condition with no leaks. Includes original brick. Will also include spacer kit as shown. Spacer kit is a 3D printed spacer with one piece o-rings. I don’t remember the brand the spacer kit is and it’s not marked. Comes with longer flanged bolts for assembly. Bought this stuff for a project that is moving in a different direction.