Hi Tom, the turbine mounts where the EDF unit used to be the hab unit slides down inside where the wood is you glue it in you will then drill 2 holes in your pipe where the hab units little prongs come out those attached the pipe , Put your turbine tail cone about 20 mm into the pipe the rear pipe centering unit goes in the back towards the end of the exhaust where the 2 pieces of your fuselage meet and is glued in... hope this helps ..
Dan