I consider some low energy restrictions for a “flipped” left-right symmetric model containing exotic fermions ofE6 and a right-handedW-boson, all with oddR-parity. The new interactions due toWR-exchange have no significant impact on rare kaon decays, because theWR does not couple tod,s,b quarks. On the other hand,WR exchanges might induce rare processes like\(D - \bar D\) mixing,\(D^0\to \mu \bar \mu ,D^0\to \mu \bar e,\mu\to e\gamma ,\mu\to 3e\), and μN→eN. It turns out that the strongest bound is obtained from\(D - \bar D\) mixing. With reasonable extra assumptions, it is found that the exotic right-handed W-boson is likely to be heavier than 500 to 1500 GeV.