Sometimes.
Generally they don't need to be replaced as often as your batter heads, because they aren't getting the crud smacked out of them.
There are slight differences in the amount of resonance you get from 1 and 2 ply heads. So depending on your own preference, you could change them for that reason.
I'd say that they don't need replacing immediately (if you just got a new kit), but they'd probably be worth replacing with a better brand (Evans, Remo, Aquarian etc.).
HB58
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