This riser kit is a great and much needed add on for the xmr's, to bad the instructions leave much to be desired. Your better off headed to the local hardware store and buying a bunch of pvc and start guessing! Enough pieces do arrive to do the job but are different than what the instructions list. And speaking of the instructions, they'll leave you more confused than ever and the pictures are absolute garbage. Once you figure out how the pipes are ran its a great accessory, to bad its a self taught kit