I bought a set of Edge Jammer 2's. I've had them for less then 10K miles. They start good and drive good, but they're too much for my stock turbo when combined with the Edge box. If I had it to do again, I would have bought either the RV275s or Jammer 1's. If I had a little more coin, I would go with DDP 40's. I'd love to sell mine and buy some RV275s. If you were closer, you could drive mine with the box on stock setting to get an idea of how injectors only feels.
That said, for the 1st power upgrade, I would buy a box and not injectors.