I have a friend making me a custom O2 housing for my '89 GT and it's actually coming along nicely.
The custom O2 housing looks very similar to the ones made in the past with a divorced wastegate pipe. This will bolt up in the OEM location and enable me to keep my A/C if I still had it and will be 2.5" vs the stock 1 7/8".
Here are the bends being used:
Here is the jig made off the OEM O2 housing:
Here is the start of the new custom O2 housing:
All it should need now is some clean up and an O2 bung. The wastegate tube isn't as graduated as I anticipated, but I think it looks really good.
What do you guys think?
The custom O2 housing looks very similar to the ones made in the past with a divorced wastegate pipe. This will bolt up in the OEM location and enable me to keep my A/C if I still had it and will be 2.5" vs the stock 1 7/8".
Here are the bends being used:

Here is the jig made off the OEM O2 housing:




Here is the start of the new custom O2 housing:

All it should need now is some clean up and an O2 bung. The wastegate tube isn't as graduated as I anticipated, but I think it looks really good.






What do you guys think?