I think you could get 50hp without going into the engine. My 660 with full yoshi,KN,jetted went 44hp and this 700 would walk away from that in a race so I think with a good pipe and filter the 700 will already be there.

 

Were you able to race a 700R with your 660R, or did you come to this conclusion by watching or riding a 700R?

The reason I'm asking is my 660R is Yoshi piped, jetted, no airbox and I was courious how it would stack up against my stock 700R, I need to get one of my buddies to race my 660R against me and the 700R.

 

ha, that 44 puts a smile on my face. Being i have a piped jetted rappy (yoshi pipe)

 

My 660 is down for repairs( 686 rod through cases member ) but my buddy was racing with us on his 660 piped,kn, jetted and that 700 walked away from both of us. We were both shocked and impressed. Hope these raptor 700s have no problems down the track!!