My 2008 Nomad was completely stock from a drivetrain standpoint until this past week. After three years and 18,000 miles of riding I was never satisfied with the way that the engine ran. It was just not smooth nor was it responsive. It often felt like it was lugging and I was constantly feeling what I thought were power pulses attributable to the fact that it is a very large displacement V- twin. Prior to installing Ray's modified throttle tube I spoke with Ray on the phone about how I use the bike and what I wanted to accomplish in terms of making it run better. I have a Hannigan Astro GT sidecar on the bike and therefore I was not looking to make it into a hot rod - I just wanted it to run better and be more responsive. I was considering Vance and Hines slip ons and a PCV fuel controller along with a K&N filter. Ray told me to try his throttle tube plus the K&N filter plus drilling the exhaust before I did anything else. This past week I did all three and the difference in how the bike performs is amazing. I drilled three holes, each 3/16" diameter, in the circumference of the end cap of each muffler. The result is an engine that runs much smoother and is way more responsive to the throttle. The minimal investment in these three changes made the bike far more enjoyable to ride (and saved me a lot of money compared to what I was planning to do). Thanks Ray!