yeah, you dont have to right ? because for now ima slap a pro circiut or toomey silencer on my stock exhaust pipe and cant i just slap it on there with no probs. the whole point is to make it sound sweeter until i get some real cash and get a pipe

 

That is correct that you don't have to rejet when you put the silencer. No effect of the performance at all.

 

how much noticable performance gain you think i'll get with a degree key and a jet kit?

 

couple intake questions..
if i buy reed spacers will they go with some boyesen power or pro reeds?
and if i get a rad valve wont that bolt on right along with the pro reeds and reed spacers with no interference? what I'm saying is, what do i have to do to put these things on?

 

I'm going to be putting a K&N Filter in my raptor. Do I have to rejet for this mod?

 

I didn't with mine, Lou