GMMG mufflers

Anyone know where GMMG gets their chambered mufflers? Or do they make them themselves? I'm gonna have a TD setup made soon and want to use the mufflers GMMG uses if possible.

I believe they claim to make their own, but I can't swear to that. I have a GMMG, but I never asked them about that. I did read it somewhere though.

GMMGs are chambered mufflers.

Google "sweet thunder" chambered mufflers....gonna be same thing

Also, there is a brand called "Powerstick" that is similar to the GMMG mufflers. If you want stainless expensive ones, Stainless Works has this same style as well.

I e-mailed GMMG about their exhaust a couple months ago, they claimed to make them themselves.

I used power sticks on mine and they sounded great!

I run GMMG and the powersticks are a very close compromise.