Here's an XL one on a 9XL Fiegao. I'm not sure about putting it on a Neu though. I don't know if the Dia. is the same for the smooth cans but I think they are. If they are then the L size with some longer screws would fit because the XL Fiegao's are longer than the 1515 Neu's and the XL heatsink goes right to the end of the Neu. I'll check on the can Dia.
