Performance Modifications 2000 Honda 400ex Exhaust May 11, 2015 So I recently picked up a new quad. It came with this exhaust. Its has two separate pipes and then bolts into the muffler as two pipes. It has no markings anywhere. Im trying to figure out what it is, as the endplate keeps breaking off while riding. [IMG][/IMG] Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related