It’s a little bit more then that. The 1LE cars come with a 3.91 rear ratio opposed the the standard 3.45 of a regular SS. The PCV system is also different, it’s basically the same as a grand sport vette in that it’s designed to prevent too much oil being drawn into the intake when you road race the cars. The factory performance exhaust and short throw shifter are also part of the package. It does have ZL1 wheels and tires, but the other suspension changes are unique to the 1LE pacakge.