Glasspack
A glasspack is a type of automobile muffler in which the exhaust gas passes straight through the center of the muffler. The basic design consists of one smaller tube centered inside of a larger outer ...
Flowmaster vs Glasspack (Cherry Bomb) - YouTube
Jun 13, 2007 ... READ: The glasspack was MUCH louder than the flowmaster, the camera made the flowmaster sound louder. Please comment which you like ...