It looks like your piggies have been cut, and your baffles drilled out.
The piggies on STD/Tourer pipes are of a different configuration than
the Interstate ones, so you can't swap the tips... without cutting the
piggies :-) ...
As you have read a bunch of past muffler posts, I'd say I like the idea
of MarkT's piggy-plates and also the ideas of some of the folks
who have plugged drilled-out baffles and re-extended piggies from
nubs...
I cut my piggies and extended them with straight pipes that
come to the ends of my triple tips...



-Mike