Attaching 993 exhaust tips

[Bones]

I have a '78 SC converted to a 964 look . I want to fit a 1 in 2 out exhaust . I already have the exhaust and two gorgeous 993 exhaust tips . Rather than weld these to the exhaust pipes I would like to fit them as Porsche intended . I believe there must be some sort of circular clamp thet goes around the tips thus fastening them to the pipes.
a) Am I right?
b) If so could someone describe them (part no.) or post a pic?

[billbauer]

circular clamp (clip) 928.111.427.00

sealing ring 928.111.246.05

if it is anything like my c2 turbo, the sealing ring goes inside the joint and the clip holds it together.