First of all, I would like to thanks everyone in the forum who spend time and wrote out all the instruction and tips for lowering kit and swing arm spool installation. I just installed them last Friday. For the soupy's handle riser: 1. The riser fitting was not perfectly aligned. The 3 out of 4 soupy's screws had hard time screwing back to the handle bars. 2. The brake cable ran short so that I unscrewed one of the small clip mounted to the middle of the fork and unable to put it back. It doesn't seem to be a big deal since the cable is not able to move anyway with the stretch after installation. For the soupy's lowering link: 1. Big mistake: the center core of the links keep scratching my suspension. The OEM dog bone was flat. The soupy's links are a cylinder. No matter how I turn the core, it still scratching my suspension. For the swingarm spools I got from ebay which they claimed is OEM parts: 1. They provided a cone shape extension, but it doesn't do anything. There is still about 1/4" screw thread exposed. Well, as long as i could use the stand with it. I won't complain. But the scariest thing after the installation was : Once I started the engine, a sharp explosion sound came out. I turned off the engine right the way. It sounded like an explosion in the engine. Anyone has an idea what was it? I checked if I disconnected anything, everything was connected, then I started the engine few minutes later, everything was fine. I drove it on Sat & Sun, nothing happened except I could hear scratching noise from the suspension and the fenders when I riding through bumps. Please help and comment. Thank you.