What you want is an early 996 FACTORY aero kit front bumper. It's the same front bumper that is on the early European GT3 and the early ('99-'01) 996 aero kit cars.
It's a direct bolt on to the 986. (But remember - it has to be for an early 996. In 2002 Porsche changed the headlights.)
Also look around for the different front lower lip spoilers that are available for the bottom of the spoiler.
Look through this thread. You'll see lots of pics of what you're looking for.
https://rennlist.com/forums/996-forum/849496-996-aero-kit-picture-thread.html
They are going to be expensive new from Suncoast.
Again - look around eBay. Search "996 Aero" and see what you can find.
Do yourself a favor. DON'T buy the after market crap. Please. It won't fit right, it won't be as sturdy and you'll wish you wouldn't have bought it.
Take your time looking for a factory piece.
Here's one for sale from a while back. I think he's advertised it several times since this ad. It might be worth checking on.
https://rennlist.com/forums/parts-marketplace-old/1025942-996-mki-aero-front-bumper.html#post14485836
I look for this stuff every day. Patience is the key. If you're not patient and learn exactly what you want and where it came from, you'll end up disappointed when you buy something you "thought" was right because you didn't know what is was. You probably won't find the factory piece today, but with patience you will. The hunt is half the fun.