How many gallons do you have through your motors with those mufflers?

We have 3 JTEC pitts (normal, not large size) in our club. I have 6 gallons through mine, and the other two have about 4 gallons.

We did have some initial issues with the mufflers coming loose, but after some red loc-tite the loose bolt problem was solved.

Otherwise so far so good.

Joe