Rejetting with slip on

[trict_out]

will i need to? i was planning on waiting until i bought the powerbomb header for my factory 4 before i rejetted but if its just gonna run like **** before then ill do it before and after i get the powerbomb

[CMPX3]

One of my ridin buddies has a hmf slip on and did'nt rejet and his runs great. Not sure if thats the rule for all quads though, his is a dvx400.