I'm planning a new project and will be needing a Pitts style muffler.

I see that I can get a Slimline and a Bisson in the Pitts style, but I'm wondering which one is quieter? or, are they both very quiet, or both very noisy?

I'm looking at a Bisson 2175 (LX8673), or a Slimline 6002 (TH LXFH36)? There's about a $20 difference in price. I don't want to get something that I don't need, but I also want to make sure that I can meet our club's very strict sound rules...

The engine is Supertigre .75. Alternate suggestions would be appreciated as well.

Comments anyone?

Thanks,

Bob