Has anyone used any of their exhaust systems? I was looking at the RCM slip on. It seems to be just like FMF's megamax, White Brothers, and Supertrapp with the disks. And also the HP system. Does the pipe make good power? I'm looking for a good overall power gain. My engine is stock.

 

The HP system does make a good HP gain. It seems to help the overall power, not just one rpm range. It is very loud and with the disc system it is'nt much quieter. But then, all systems with a decent HP gain are loud on the 400ex.

 

You guys know what D.G. stands for don't ya??

"Don't Go" or "Don't Get" HAHA

Go with White Bros. or FMF. They are both far superior than D.G.