My personal Suzuki GT550 gets a new set of Higgspeed expansion chambers. Listen to the exhaust note before with stock pipes, and after the install. I still have to check the jetting, and will post here what changes I have to make. This bike will be keeping its stock airbox system...only change is the expansion chambers.
![](https://i.ytimg.com/vi/XeYzx4qXhUw/mqdefault.jpg)