After getting the manifold end of the pipe in the correct location, I needed to attach the cross-over pipe. I pinned it by drilling a hole through the pipe into the cross-over with an index drill bit (#75 I think) and inserting a wire to hold them together. The wire helps them stay together after the glue dries. I also decided to change the location of the cat along the exhaust system. The slot I'm filling in was there to clear the transmission support cross member which placed the cat right next to the transmission oil pan- bad location.