is there anyway i can buy one or get a new one?

 

Yes..
Order new from honda
http://www.slhondaparts.com

Or..
Find a used one on HT marketplace / ebay etc.

 

what is it called under that sl honda place?

 

You have to go through it. Pick your vehicle model, year, trim, etc. Then it is under the "interior/bumper" category and then "Front door lining". Click on "view these parts" then click the number corresponding to the plastic grill. You also need to make sure you get the right color. If you don't know your interior color, look at your driver's side door jam and it should give you either a color name or color code, I can't remember. If it gives you a code, just google it/HT search it to get the name that it corresponds to.

 

Go get one from a junkyard