New injectors typically come with a warranty while remans typically don't. Considering the amount of effort in trouble shooting a bad injector, isolating & identifiing which one and then changing it out, I thought the extra cost for new ones was worth it.
Now you have the opportunity to get single shot injectors instead of the factory split shots. Single shots, while they smoke more will give you more power and should give you getter mileage. But you will need a chip for the programing changes needed to get the injectors to idle right.
Bean's can set you up with single or split shots, new or remans, and a chip if you decide to go with single shots.