I just received the plenum this morning, two months after I paid for it.
The RR name plate was poorly glued on and was coming off. When I peeled off the protective plastic film, part of the logo came off with it.
One of the attachment tabs was bent. Overall, I would not describe it as a quality part that I would buy again. The rest of the RR parts I bought are on their way in another box and I honestly hope that they are of better quality than the plenum.
DDTUNG