My Pulsar (as Major said) has a front exit - and is silly loud. I can no longer drive with my window open as a) the flames can lick my elbow and b) my ears ring after a 20 minute drive.
As for novelty - it's simply ****ing awesome. You're meant to know when a Pulsar is coming and with mine you get exactly that. Not only can you distinctly pick out the turbo whistle, but on boost it sounds like the apocalypse. Gentle driving sees plenty of blue flames spitting all over the place and on a spirited drive a bright orange ****er will touch the hedgerow on the other side of the road no worries.
See here for a brief video at night (beware, it gets LOUD):
http://www.youtube.com/watch?v=G5gc_1kLAws
However. It's too loud to live with and pisses me off (it failed MOTs at multiple stations for being too loud) - I am very, very tempted to revert to a 3" goose, but the amount of work gone into it is rather staggering and it would take away the character of the car. It's nice when everyone knows it's you because not only did it sound like Satan rode past on a Motorcycle made of screaming babies, but the 4 foot flames firing out the front are like a big middle finger to the poor prick you just overtook.
I would miss it terribly.