cambo glad to here it went good for you . i orderd the 1/8 tubing in brass and alumin i should get it next week in the mail from my sister, i went with 1/8 by 36 in long to wrap it around the big bisson exaust .i had a big problem landing today the set screw was not letting the idel go down enough for me to land on our short runway , my bisson exaust came loose and with no back prusser it was a high idle, but with the muffler on i could lower the rpm no problem and also shut it off back to work on the plane.