Red, I just read the January issue of Flying Models and Allen Brickhouse has a report on a new muffler maker. Thery are made of a magnessium alloy. Allen said he uses them on his Fox 35's. sounds like the design is a weight saver and it must work good if Mr.Brickhouse uses them. The other mfgr's are good people too, I have used there mufflers, just thought I might mention the latest.
Cost is listed at $20.00+ shipping
The contact is: Richard Linthicum. email- [email protected]