My turbo drain bung + cap came too.
I figured I'd do a write up about this, since all the other threads are old and the pictures no longer work, or something of that case.
This info is from a 240sxtechdvd's video on youtube, I'm just putting it in text form.
Materials needed:
Earl fitting: 967110ERL
Earl fitting: 992910ERL
Drill with 3/4" unibit, or whatever you want to use to make the hole (i didnt have a 3/4 inch so i used a 1/2 inch and a file..)
Grinder
Here are the fittings
Here is the location you will be drilling, if you want to keep your a/c. If you dont want to keep your A/C, drill where ever you want, but make sure it is as high as can be.
This is 8 1/2" to the center of the hole, 1" down.
Here's a better picture of the location, when you drill, it should be going through this baffle.
Next, get your drill, start off with a pilot hole, and eventually you will have this. Keep checking to see if the bung fits in, dont make it too big. Get your grinder/sandpaper and remove the paint so you have bare metal. You will have to grind the lip down a little bit, so you can fit your welder in there to get the top of the bung sealed. (as seen in pic)
Now you're pretty much done, you just have to weld it in.
The last picture is showing that you want the bolt to be straight, like that, so you can access oil pan screws easier.
