I also had one, in fact I tried to remove it from the old tail pipe yesterday with the thought of passing it on to another member but there was now way it was coming off without a large fight and damage to it's exterior.
It was real nice quality, fit was tight on the 4" BD exhaust, had to bake the tip while sanding and using WD-40 on the BD, then it slid on fairly easily. If yours doesn't go right on and you have tried the above, try turning the tip until you find the 'sweet spot', worked for me.
I still have my original 4" turn down chrome tip that came with the BD exhaust, excellent shape, real nice looking chrome. If any one wants it, send me a email, private message,etc. and it's yours for free, you pay the freight. First come first serve.
Scott W.