Crossing four of the exhaust primaries under the engine is only possible due to the low-profile Daily Engineering dry-sump pan. It includes a -10 AN adapter which replaces the stock oil filter. While it’s massively smaller than the stock unit, it was too close to the exhaust. In the picture below, the blue tape is protecting the oil pan (it’s billet and I don’t want to scratch it) and the oil adapter is the threaded AN fitting. The hole in the bell housing (white arrow) mounts to the stock oil pan which illustrates how much smaller the the Daily pan is vs. the OEM pan.
The solution was a shorter adapter from Kurt Urban. I might need to modify a socket to tighten it, but I won’t know that until I finish tacking the exhaust and remove it for final welding.