#gpgarage #glasspackmuffler #exhaust Hello everyone In this video, I show you how to make a 2.5inch muffler. These glasspack style mufflers are easy to make and provide better gas flow than mufflers with chambers. For this muffler I used ceramic wool instead of glass wool. In some of the future videos, I will compare the sound of this glasspack style muffler and the flowmaster style muffler that I made earlier. Link to DIY flowmaster style muffler https://youtu.be/6M8pPxzOt4A Thanks for watching