I missed the request for some pics of the modded tubes, I "might" have some pics, will have a look.
As for 2.5" tail pipes over the diff, mine has that as hand made pipes using mandrel bends. It also has the large centre 9" housing, it does bump occasionally, but not often, a while ago I considered modding the floor above the diff with some pipe to create a lil more clearance like you often see in hotrods, but not sure if its worth the effort.











