I am running Caliber pipes. They are made by sampson exhaust. Much like the V&H they are stepped header pipes, except they are the only 4 step header pipe available for a v-twin. They sound fantastic on both my Heritage Classic and my SE Fatboy, they are a bit louder on the 103 VS the 88 but they are not earbursting loud either. These pipes will deliver as much more HP as you can possibly gain from just pipes ( they claim 25 percent ) which includes all the 2-1 systems. I don't know if 25 percent is true but there is a noticeable difference in acceleration power. I did not add a race tuner or anything I just bolted them right now and run them. I do have a bit of a sputter when I let off the throttle , but I am sure it will be all good once I get up the cash to get a race tuner installed ( since I dont have this problem on the flstci that is race tuned) , but its not a big enough problem to make me want to put the stockers back on. The fit and finish is great full cover heat shields, baffles were a bit tough to get in, probably could never get them out again since I had to use a block of wood and a hammer to pop them into the ends of the pipes ( they come with two sets I used the obviously more free flowing baffles ). I had these pipes on the Heritage classic and loved them so much I invested another 750 beans for my fatboy, I won't use any other pipes. Tried lots, some sound louder, some look cooler, but for a combination of looks and sound and performance it is my opinion that you can't get a better pipe, BTW 4 thousand miles and not one bit of blueing on the Heritage Classic. [smiley=beerchug.gif]