I've replaced 2 faulty gauges already, and I think i've finally got a gauge that isn't faulty. I was flooring it in 3rd gear, from about 20mph-55mph, and it stayed at 5lbs of boost max. Is this normal? Can it run at 5lbs of boost? The pervious owner installed a EBC, and it doesn't really work by the looks of it, but sometimes i see numbers that say, -4.89, or -5.02. could that be what the boost is set at? Also I'am about to install the MBC from Two'srus. Do I have to take apart the old EBC before I install it? Thanks!