I went to D and D's web site, looked at the pipes and listened to several dyno runs of 88's going through the gears and I heard the same thing as the 107's. Getting back home and going over the video I had taken I kept thinking about what I had seen and heard. It wasn't the quantity of the sound(the Fat Cat is not as loud as the BSS's) but the quality of the sound. While I was there they fired up several bikes for prospective owners and it got my attention. All of American Iron Horse Motorcycles had these on them, but at the time I wasn't thinking of or looking at exhaust. I saw the Fat Cats a couple of weeks ago while I was at the Steel Pony Express VI in New Orleans. I never really liked the look of the ThunderHeader or the megaphone look of the V & H Propipe.

But everyone and his brother has them including the Python knock offs which V & H makes. There is a reason their everybodys favorite, it's because V&H make a very good, high quality system. The pipes these replace are everyones favorite, the Vance and Hines Big Shot Staggered with the hidden cross over. The dyno numbers on most top systems are pretty close leaving looks and sound to sway the fence sitters. These are reported to have won Cycle Worlds pipe shoot out for what ever that's worth(probably not much). To tell you the truth D and D is not the first name that pops into my head when I think of Harley exhaust. They feature stepped header pipes similar to the Rineharts and Hooker systems. I thought I'd write up a review on the latest version of D and D's Fat Cat 2-1 exhaust system.

D d fat cat review