Part name

Does anyone know what the plastic part that covers the injectors is called. My Impala is a 2000 V-6.
Also any tips on replacing it once I get the part I need. Thanks everyone and happy Memorial Day!!

It's technically called the fuel injector sight shield, I couldn't find a part number or price on it.

I found the part name its called the Upper Plenum and cost about $150.00 from Advance Auto Parts.