I just bought a 2003 Xterra SE with the supercharged engine. From everything I've read, there is a VG33E and a VG33ER engine for the Xterra in 2003. My VIN sticker says my engine is a VG33DE. I can't find ANYTHING on the VG33DE. Is it a misprint from the Nissan factory? If so, that's not...