Remember, the AVL Lean Burn motor just wasn't lean enough for Eurocrat emissions doo-gooders.
Those UCE/EFI front pipes and mufflers were always going to get hotter than hot.
If you have a faired in plastic rocket type bike then you won't worry that the system has gone all colours of the rainbow. As Ace says, the answer for Bullet style everything-on-view bikes is double walled pipes.