The quiet baffles do fit in the straights. (same as the long shots) The reason they say that they don't make them for that pipe is because the straights do not have a heat shield that covers the whole pipe like the long shots. Heat does build up with these baffles and the pipe does discolor a little where the baffle is placed. Mine have a very slight gold tone to them. It doesn't bother me and I still do plan on doing a black ceramic coating on mine. As far as sound I love the baffles. It does deepen them but the best part for me is that it takes away that high pitch sound that the straights had on the highway. It does not bother everyone but it did me.