Dynomax VT mufflers

Right, but now that I look at it, it only half of the case has the perforated pipe with the glass packing. The other half is the chamber with the valve. Once the valve is open I am assuming you are only getting any muffling from the glass packed half. This would be compared it to the ultraflow of the same size.

dynomaxvt.jpg

dynomaxuf.jpg