Delkevic 18 inch can

[Wah64apache]

Hi All;
Anyone have the 18 inch Delkevic round/oval can on their ST?
Any issues? Turn signal melting, interference etc?
How does it sound with the db killer installed? Removed?
I have a K&N Air Filter
Iridium plugs
Bazzaz FI trimmer

Cheers, Frank