User blog comment:Justarandomguy/Are the Quarians Doomed also?/@comment-1441235-20120318053505/@comment-1441235-20120318063937

Sure, the Reapers could do it, but its stated ingame that the Reapers FTL drives (much like everything else associated with them) are much more advanced than the Citadel race's FTL drives, accomplishing distances in much shorter times than Citadel race's FTL drives are capable of.