Dealer told me only springs are different between 300C models, not shocks. It’s hard to get the same story from multiple sources. Sounds like the Touring suspension is stiffer, but that’s confusing because the 300 Touring model is the base model and would have the softest suspension of all 300 models.There are two types of suspensions for a 300c. Comfort and Touring.
When I am shopping for shocks, they ask whether I have the performance suspension. I have called the dealer and with my VIN number, they said it has the "touring" suspension on my 300c.
Now is the touring the "performance" spec they are talking about and the "comfort" is the non-performance.