Yep, that is part number P5153525.

There is a shot of it on page 62 of the 2007 MP catalog, but I like your picture better!

Oddly, it can actually be bought for less than Summit charges for a regular RPM intake, but you need a good guy parts fella who will sell at a small percentage over dealer net. At retail it's higher priced than Edelbrock...but after a little digging, I found it to be sometimes lower priced, depending on who was selling it.

Personally I would really like a B version for my C body, but there is no such thing