Accessing the Raptor's carbs is a royal pain. Lots to undo to get to them. I hear the YZF450 is even worse.

 

no it isn't hard and NO YOU DON'T HAVE TO DO IT IF YOU WANT YOUR BIKE TO RUN LIKE SHIz........DEFEATING THE PURPOSE OF BUYING A PIPE TO BEGIN WITH!
ultimately......if you want to gain anything from getting a pipe.....YES!.....You will have to rejet