Hi Sean, Yes, you will need our 993-107-001-00. It's designed to replace the rounded cover, that does not have the drain plug and is used with the upgraded turbo oil pump. The 993-107-001-00 has the round inside and uses the 911 drain plug.
It might be easyer if you email me your shipping address and I'll exchange yours for the correct one that you will need.
Bob Futterrer
Mainely Custom By Design, Inc.
sales@mainelycustombydesign.com