They do make 2 different flexible couplers.
The one to use with a turbo setup is TurboFlex Couplers with Interlock Liner
Vibrant Performance TurboFlex Couplings feature an internal Stainless Steel Interlock Liner to facilitate smooth flow and also protects the bellows from direct exposure to high temperature exhaust gases. Recommended for all high flowing, high temperature applications (e.g. forced induction).
vibrantperformance.com
Not the Standard Flex Couplers with Internal Braid Liner
Vibrant Performance Standard Flex Couplings with Inner Braid Liner provide smooth flow while retaining flexibility in the coupling itself. The Inner Braid protects the Bellows from premature failure due to high temperature exhaust gas exposure, and is ideal for eliminating “whistling” caused by...
vibrantperformance.com
But yes these are almost a disposable item. I would weld v-band flanges on them and make them easy to swap because they will certainly die before your exhaust.