Yes, but its not a change to the model architecture, so you can actually subtract out the base SDXL model, merge in any existing SDXL checkpoint, and get an Turbo version of the existing checkpoint..
(In ComfyUI, this just takes loading all three checkpoints -- turbo, base, and the target one -- and using a ModelMergeSubtract node to subtract base from turbo, to get the "turbocharger" alone, and a ModelMergeAdd to add the turbocharger to the target checkpoint.)
(In ComfyUI, this just takes loading all three checkpoints -- turbo, base, and the target one -- and using a ModelMergeSubtract node to subtract base from turbo, to get the "turbocharger" alone, and a ModelMergeAdd to add the turbocharger to the target checkpoint.)