I know this is already covered but I just installed a dynojet jet kit in my raptor today and rode it for about 3 hours in 20 degree weather here in New Hampshire, and I am telling you that this kit rocks. No missing, not rich or lean. Awesome out of the box. If you don't have one get one.

Chasman
01 blk/wht Raptor
Big Gun Exhaust
Full Gytr skids
Dynojet jet kit
Custom Tail light cover
denton steering stabilizer
head light covers
shock covers