EarPods are louder when put backwards into my ear
Referring to the iFixit's Apple EarPods Teardown, it appears that it would be pretty hard to open up the ear drums, put the speakers right way round and assemble them back correctly.


  With such a tight fit between the two halves of the EarPods, simply pulling them apart wasn't an option. We knew what we needed to do.
  
  
  
  
  
  
  
  This isn't something you'd want to try at home. Once these Pods are open, they're not closing back up unless you want to involve glue.


Additionally, they are not rated well on serviceability or reparability front.


  But unfortunately, these products are still of the throw-away kind. Sourcing parts is next to impossible, and it would be a tough sell to convince someone to take apart their earbuds instead of buying a new pair. They will never be the same once taken apart.


If you still have the original warranty for the iPhone with which the EarPods were bundled, you can try getting a replacement.