I can't tell from the pic if thats a welded cap, or a threaded cap. if it is threaded I wonder if at some point there were O2 sensors there? In either case you should be able to use that to get EGR for your re-install of the EGR stuff, you just need gas from the exhaust to be able to recirculate. Keep us posted!
2003 Redfire & Black V6. Full suspension, 8.8 w/ 4.10s, tuned. 4.3L stroker + turbo capable of 550 hp soon
1992 5.0 Auto Hatchback...needs wiring, interior, ...basically everything
RIP: 2015 SHO PP, 12.87 @107 1/4 mile