The 1992 Mustang I purchased was from a county that didn't require smog testing, and was missing many smog parts. I am replacing the smog pump, adding cats to the h-pipe and am hoping someone can help with the diverter valve. My heads aren't ported for the smog pipe. Can I just run the bypass valve straight to the check valve for the converter pipe and eliminate the diverter valve? EPA here just wants to see a smog pump and converters and a passing emissions level. Any help greatly appreciated.