Ability to disable collision between specific components

So here’s an example where I need Ignore Actor. It’s a multiplayer car game, where I spawn attachments onto the car at runtime.

55131929017bd1976386902dda64453c1a34d888.jpeg

So I would want the collision of attachment to ignore with the vehicle. Currently the physics will blow up when it is spawned. IgnoreActorWhenMoving is not the right way, it should be ignored at physx NxActor level. It needs collision as it can be destroyed.

So what’s the correct way to do this without ignore actor?