We live in a time where carbon fiber is used more as a decoration as opposed to a valid engineering material.
Hey, I love high-tech, cool solutions but if there's no valid underlying engineering justification I often fail to see the beauty.
Perhaps, if the tubing is titanium, as some have suggested, then mandrel bending isn't practical. I'm not sure.
If it is titanium AND mandrel bending was impractical, then perhaps it makes some sense.
It does seem to be the same material and size that was used on the exhaust, so perhaps they got a deal on X feet of hard titanium tubing?
-Jim