How does it work with the foam so tight?
maruid Reviewed by maruid on . DIY - Inline Duct Muffler / Silencer Homemade Muffler DIY Tutorial Building a DC Muffler 1. Introduction Building a muffler is not a difficult task and the result works fairly well. Using a length of heavily insulated HVAC pipe will accomplish nearly the same noise reduction, so many choose not to make a muffler. At the same time, they do help considerably. Dave started with my exploded diagram below and did an excellent job on his. He was kind enough to allow me to share his efforts. After having made a number Rating: 5