Re: Stacked pulleys - 23 psi with no codes. :)
ROB at Needswings has the pump, regulator and filters that will do all that you could want to do. I took the code 3 off my 185 cause the stock rear could not hold it and it was dangerous to drive on the street.
FYI look at the different galleries to see what I have done so that you dont have to recreate the wheel.
Woody