Any way to "de-power" a power steering box?

"De-powering" the steering is pretty popular with Mazda miatas. We did it in my friends car and it wasn't very noticeable. But it's small, light, and rack and pinion. Probably an Apple's to oranges comparison. I tried it on my 97 BMW and love it. Been daily driving for 2+ years with a de-powered rack. You have to actually pull it all apart and remove seals inside so you aren't trying to pump air or fluid when you turn. I would give it a shot and see how it feels when properly de-powered. If it sucks then buy a manual box.