'93 LT Headers w/Emmisions.
You can usually find some places that will pass you for emissions/visual inspections, some will come with a price tag. Generally, LT headers are not legal in any state because they push the cats back further than the stock location. They however do come with EGR and AIR hookups. If you can find places to pass you, just get non-emissions headers. You have a 93 so probably won't throw a code w/o running cats. Get LT headers no doubt. They will give you the best gains.

