IridiumRS400, that's exactly the way I wanted my exhaust tips to sit in the diffuser.
I did the washer trick to the hanger bracket on my IS300, and I planned to do it again with the Q60. I wish I could extend the muffler without cutting them. At least I shouldn't have to worry about my diffuser melting.When I Installed my FI 14'' CB. I added 3 washers between one of my hangers and the body. Using it as a spacer so the muffler would sit lower in the cutout. My tips were not even and it bugged TF outta me!!! I wouldn't pull them futher out because Kevin @ FI has told me horror stories of them eventually coming apart :0 Told me only a half inch outta the slip fit at most! They are only adjustable side to side. (Left to Right) Mine are 3/4 of an inch from the diffuser. Haven't Melted yet!