These headers are big, and come in sections that slip together in the car. The drivers side has the front 3 primaries and collector all together, and the rear tube slips in as you bolt it to the head. The passenger side has 4 pieces, and is a real challenge to say the least.
After they are all fitted, and any modifications done, they will be removed, and taken to Nitro Plate in Hendersonville Tn to be ceramic coated. While this is being done, the notch in the kmember will be boxed in, and the indented part of the floor boxed. When the headers are installed, I will install the 3 x 2 1/2 adapters and tie into the existing exhaust.
These have 1 3/4 inch primary tubes that are too big to bolt to the heads, so adapter plates are used. On my old 1 5/8 shortys, the tubes were dented in to clear the header bolts. It would be too much to do the same for these. These are a real PITA with the HD APR head bolts. It required a lot of grinding to get room for the bolts.
These show what was done to route the left rear tube around the steering shaft. Now I have to get the rear one welded up, sand them where needed, and get them to Nitroplate in Nashville.