I just purchased a 1991 KX 250 that had a pipe guard on it. I think all the guard did was cover up the degree of damage on my pipe. I really didn't think it was that pinched until I pulled the pipe guard off. Then I could clearly see that it was also cracked. If you are worried about dings from rocks, it might help. But, if a boulder decides to jump up and suck you to the ground, a pipe guard is just gonna hide the damage until you get home. Besides, these platinum pipes look so good without a nasty guard covering them up. Save your money!