In what way does the pipe change the power delivery? Is it a low/mid pipe or more of a mid to top pipe? Can the pipe be purchased w/o the whole kit? Im going to try a 89/94 KDX200 tank on my 500 and I think pipe clearance will be an issue. It can be done on a 88/89 KX250 so it may work on the 500. The lowboy style would give me all the clearance I need. I dont need the 4 gallon capacity of the IMS, Zip Ty, and Clarke tanks. My 02 came with a IMS, and I cant stand the way it looks.