Removing Owa from address

Hi, I have a client that is going from Exchange 2003 to 2013 soon.  The client previosly had there outlook url so that there was no /exchange at the end of it. They would like the same setup with the new server so that the /owa isnt at the end of the URL

I have found articles on redirecting the /owa to the root of the webpage for Exchange 2010 but havent found instructions for 2013 yet, im assuming it would be the same instructions for 2013, is this correct?

Also, is there any adverse effects to getting rid of the /owa in the url?  Such as will Exchange Active Sync be effected in anyway?

Thanks

Mike