This is not a stock item off the shelf, this is to fit your original 'cat' in place of the Janspeed De Cat pipe. 
You will need to supply your old 'cat' along with the original Janspeed De Cat pipe. Using a jig your original 'cat' can then be welded in place.
Additional lambda sensor bosses can be welded in if you require ( if you have an AFR gauge. ) Plese contact me for all your requirements.