differences:
emblems
Ram Air hood and intake
Cat-back exhaust
17" wheels & tires
32mm front sway bar
upgraded rear spoiler (depending on year)
By getting the SS, you had a lot of other options that could be ordered from SLP. Depending on the year, this included upgraded suspension (Level II, Ultra, 1LE), rear differential, engine (LT4 in 97), shifter, chrome wheels, etc.
Je te laisse traduire mais en gros il dit que la SS est mieux équipée