Just try not to do it. I've had to learned the hard way and still make mistakes.
One thing I didn't consider was your local licensing requirements as it relates to emissions standards.
If you have all the emissions stuff working and need it to pass it would be good to maintain it. You may get the smart guy that knows you have removed the airbox and disabled the head vents. But if you can get away with a tune with pods that can pass (barring visual of course) you should be in the clear.
OMR and a few others have yearly emissions checks. I don't have to do that in Cali with this bike. Probably have to be inspected if it changed hands though, not 100% on that.
I had issue with running without a permit or license a couple of years ago. The CHP didn't have issue with the bike setup. Was expecting a tong lashing about emissions and all that. They didn't go there, lucky me. don't know if he noticed all the bits or not. Bike was clean as it could be just finished a mini tune up.
Carbs RS34 and Pipe Kerker K are not stock by any means, especially since it's not even the stock motor (different VIN on reg.)
But the tow truck driver noticed every bit. He commented he noticed the carbs and quickly took it away before other CHP started poking around my bike.
Just be aware in a nutshell. There can be more that you realize at stake keeping these on the road in your State.
KZ750R1 + 1991 ZR750 = KZR750R1
Better to be shot out of a cannon then squeezed through a tube. - HST
