I just went through this and swjohnsey helped me out a whole lote, so i in turn will relay this onto you. I ride a '02 zx6r, i installed everything right and went through pain and hassles for several days, almost a week. I ended up going through 250 dollars in beer and a whole bottle of Aleve. This solution is so simple. Do what the directions say, and then take it and have it dyno tuned. I know it's a pain in the ass and costly, but it is a must. Mine is going in to get dyno'd on this coming Monday, runnin me about $155.00 for the dyno tuned w/ before and after results. I think it's worth it. right now my bike runs like shit, because my air/fuel mixture has to be tuned. Not only do i not have the balls to do it, but i simply do have the tools or the know how. Just take some advice, go as far as your are confident of doing a good job, leave the rest for the pro. That's all i can say. If you have any questions ask swjohnsey he hlped me out tremendously.
What are some symptoms of your bike, mid-rang sputter, high-end stalling or pausing? Just out of curiousity!
A wise man once said worrying is like sitting in a rocking chair, it gives ya something to do, but doesn't soplve the problem!!!