Finally am getting ready to install a mud buster cam and do some head work on my grizzly.... I was wondering what pipe I should run? I think I am going with the Penland Pro HMF pipe but am not real sure. While I have the grizz down I was going to service the clutch and was wondering how much greese to put in the clutch and what to look for as far as wear? Any info would be great.

 

I would reccomend going ahead and put a piston in it. All the Raptor stuff will fit. A good option is the 11:1 wiesco 102mm bore (686cc). The Hot Cams stage 2 is a little more agressive but will need new springs to run it. The mudbuster specs say you must run a raptor middle intake spring. THEY ARE THE SAME PART NUMBER ON BOTH QUADS.

 

I am not sure where you found out that the spings are the same but the 2 different places I check they were different part #'s but that don't matter to me because a buddy of mine has the spings that came out of his raptor so I will use those to be on the safe side!

 

got some of the install done on my Grizz and the spings are not the same as the raptor spring at all there is a big differece in height alone. Just thought I would let every one know that there are not the same.