Welcome to the forum.  Yes, there are aftermarket billet custom built intakes, but they are hard to find, expensive and probably not the direction you should go in right now.

You should just order up a OEM replacement boot "intake pipe".  I'm not sure if we still get a discount at HondaEastToledo.  Lately, I've been using Partzilla. 

Here is a link:

http://www.partzilla.com/parts/detail/suzuki/SP-13110-43B00.html

If you can get better prices thru a local dealer, then that would be good.

A friend of mine had the same thing happen and he only noticed it when R&Ring the carb.

Good Luck.

P.S.  You should perform a leak down test once you get this new part installed.  There are a few spots on this quad that seem to always leak a little.  Without the leak down, you can burn down your engine.