Im guessing u are referring to the heated throttle bodies? Im runnin twisted turbo, and the lines are disconnected from the throttle boddies and connect to the turbo instead. Have not had any issues, rode 3-4ft pow in -20C with no problems
Pro:
?? You don't have to mess with unhooking and rehooking them up when you take them out (Not sure why you would take them out so often that this would be a selling point)
Con:
Butterflies can get condensation on them, closing the air gap, dropping your idle or can keep the butterfly plate open more with ice and make the sled super-hi idle or drive away.