We have several mufflers for the DA 50. we have a compact Pitts and our quiet Pitts. The Quiet pitts has been independently tested at 95 db at 9 feet and 94 db at 9.8 feet. I do not know what prop was used when tested. cost is $89.99 and $139.99 plus shipping
Al Young
JTEC/RADIOWAVE
www.jtecrc.com
[email protected]