Matt, The new mufflers are 24" body, packed with the louvers facing forward. They are
louder the originals mainly because the ID is bigger. The sound is much better but the biggest
difference is the power increase. I do know that if the louvers were facing backwards and
they were not packed, it would be to loud. I took a friend down the highway last weekend
at 75-80 mph and about 2200 rpm we could easily carry on a conversation. It has a nice deep tone
cruising and a bit of a thump at idle. Like your engine and mine they are capable of making good
horsepower but not with the old pipes.