OK. Been only 120miles on the Muffler since Randy sent it back to me. Most of the miles put on by friend riding the bike during a warm day in Decemeber. I just moved the bike last week during a mild day into a under ground garage. I must say, what a ride. I got more thumbs up from kids to old men in their Benz.. Even had some kid taking pictures. The sound from the hawk muffler is amazing. SO crisp and clean.. During the snow storm that hit us in DC today, I started the bike in the garage and rode it around.Its 2stories under ground so the temp was around 45 It actually drew a small crowd drawn in by the sound. Police, neighbors, and whoever heard it had to take a look. I must say many thanks to Randy and his work with my muffler. I'm so excited for spring and riding season. Thanks again Randy! Look forward to talking to you again.