Just noticed that the front engine splash guard (runs along front of engine behind and underneath bumper) has ripped...likely from me going over a curb when parking..the plastic looks torn and is now hanging down etc. What's my best and easiest way to get it fixed...given that it will not be a warrantee covers repair? Is this easy DIY...can I get part from somewhere? Advise sought...thanks.

 

acuraoemparts.com is your friend.
it's a dealership that sells parts at cost.

splash guards are held in place by plastic clips. it would be a very easy DIY to undo the clips to take off the old splash guard.
may require a jack, so you can jack the front end up a little to get a better view and ease of access.