Hi I got an 08 g37 anyone know were I can get the parts for the bumper like a replacement built kit cause when I left my house and came back most of them were gone as well as my Infiniti symbol on the engine bay cove

 

I've moved your thread to a more appropriate category.

those are plastic push rivets, you can by bags of them on amazon for less than ten dollars
for the engine bay cover, the symbol is part of it, you can find used ones on ebay

 

Got a link ion know the size

 

people now days cant even be bothered to click a provided link to get the info they need themselves.

 

Seriously? ..theres a link in the answer I posted for you already