Spend the money...it's worth it. Put dynamat in our thor windsport 31z and it made a huge difference....
Wife and I could not even talk to each other on the first trip it was so loud up front. Put in the dynamat, it's like a different RV now.....
If you spend 50-100k on an rv, 50 bucks is not that much to spend for a quiet ride....IMO.
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