I have a feeling he has a 94-95.
I removed the large nut from the EGR, then removed the manifold/EGR as a unit. IIRC, it is 15/16, had to buy a special crows foot socket. You will want to clean or replace the EGR and all those passages while you have it off.
And yes, you will have to remove the cowl.
97 T-Bird LX 4.6 - 80k miles
94 Supra TT Auto - street/strip car
04 CVPI- Brenda's car - 76k miles
95 T-Bird LX 4.6 - fully optioned, owned 15 years, 220k miles
96 Cougar XR-7 4.6- Brenda's car, owned 11 years, 187k miles
88 T-Bird 3.8 - first T-Bird, owned 5 years, 206k miles