Originally Posted by JohnRR
Originally Posted by gtx6970
Originally Posted by A12
Bill are your "hemi" mufflers like this with center in and offset out, a perforated inside pipe?


Mike, Offset in and center out

No idea on the interior design.


I don't think the hemi mufflers have the u bends in them like the super turbo ... I'd love to cut one open ... which I read is based off a design by David Vizard ... Sonic Turbo ... according to Vizard his design didn't cost HP, he has a youtube video about them.

I remember having them on my dads 340 duster with headers back in the early 80's ... this period of my life wrecked my hearing ...


Once I change them up. I'l cut one of the repop hemi mufflers open for a look see