AirMail New Heliman Location: Earth
| My first lasted 2 gallons before it started to rattle, a loose baffle was the cause. My second lasted 4 gallons, same problem. Both where exchanged at no cost, and the third has worked well, over 3 gallons. If you want a foolproof muffler, get a zimmerman. Last for ever and is very silent. Not as powerfull though. |