well, you say 14-17 its still streetable, i mean what are you gonna be racing on the street thats gonna take more than 17psi on dr650's? a viper srt-10?
anyway, i think dr650. why cause you can controll your boost and if you really need to go big you have it, if you dont need to go big drop it.
i just feel you have a better range with teh dr650's
i havnt done much research on them and dont know much abou them.
but if they are still fine and streetable at 14-17 or even 18-19 psi then why not?
then when you need to kick in the big stuff when you see that mercialago on the street, you got that too