I got one for winter project.

I checked the user manual. First thing surprise me is I need to cut a hole on the cowl to adopt the pitts muffler(shown on user manual).
Coz the cowl is 5 1/2" wide!! The cowl is more pattern like not Extra style.
I have checked with TBM on canister solution. I still need to cut a hole for the header pipe.
I am not going to spend $200 on the muffler and still need to cut firewall and cowl.
Good to have JTec help me customize the pitts muffler.

For those pilots want to put DA-50 on this bird, call JTec. They have my drawing already!