Wait a little bit plans are to supply a removal tool with these if individuals need them.
It does take some heat and a very good holding device, you have to put some torque on it Some heads I have done, steam from boiling water worked, but I was not trying to save the internals. You may want to keep the stock reflector in good shape and not get it wet Although I have to add nothing on the inside ever gets wet on ones I have boiled, just never a KT4. With the KT4 it probably would condense moisture since the head is open.
It does take some heat and a very good holding device, you have to put some torque on it Some heads I have done, steam from boiling water worked, but I was not trying to save the internals. You may want to keep the stock reflector in good shape and not get it wet Although I have to add nothing on the inside ever gets wet on ones I have boiled, just never a KT4. With the KT4 it probably would condense moisture since the head is open.