They could really only do so much with an intake. No matter how you look at it, its merely a large diameter tube with a filter on the end. The reason that most after market intakes makes more power than the stock intakes is because they allow more flow by way of a higher flowing air filter and a smoother intake tract.
I vote you go with what ever one is cheaper, just make sure you get a quality air filter. There won't be much difference otherwise.