Not always, Some gearboxes dont like being forced ans some dont like be forced quickly either. In the 172 gearboxes no matter what short shifter you use b&m, ktec, quikshift etc they all make the box nothcy and kill the syncro as they dont like to be changed really quickly. Just because it doesnt cost 300pounds and say HKS on it, doesnt mean its not good. Far far far too much brand snobbery on here (carbon plenum).