The newer models come with a noise reduction kit that essentially makes a “firewall” between the seats and the front of the dump box to isolate the engine more (it works quite well). This could be ordered through a dealer and retrofitted on your SxS
Edit: just realized this was the 6 seater. Ignore me.
Edit again: Okay don’t ignore what I said the 6 seater has this too see parts diagram below :
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