i know stock injectors can supply alot of fuel but they are know to fail....how do the aftermarket stand up. would it be worht it to replace them with small aftermarket ones???? or fight the dealer when the injectors fail????

There is no such thing as "aftermarket" injectors. Those are just reworked stock units and more often the not, the nozzle is just fine when an injector fails. I'd say you would gain no life expectancy with honed tips, but I dont think you will loose anything either.