I love my Reavers. there is nothing stated anywhere which restricts u to a single turbo. not only does it grant u a wonderful cover save, but otherwise u would be paying for a worthless upgrade on the caltrops.
if anything is written on the codex read under " Reaver Jetbike" last sentence. they are just that fast.
may their gods have mercy on my enemies for i shall...... ooh blood!
let me make myself perfectly clear. if i ever kill you; you are gonna be awake, you are gonna be armed, you are gonna be facing me; only Then u will realize i poisoned the grip of your weapon. Subtlety is not deception.