Chevrolet engineers want to do more to the SS sedan. Motor Trend reports that engineers want to do new a handling package for the SS like the 1LE for the Camaro. The package would include a retuned suspension setup, new dampers, and tires. The report says work on this package would take around three to six months to complete. However, trying to convince the higher-ups to go forward on this project - though no reason as to why they might not approve it wasn't given.
Source: Motor Trend