I've searched and found nothing on this. I've heard some say that a non CA kit won't work on a CA bike. I actually have the dynojet CA kit at home, but haven't put it on yet after seeing negative posts about it. I spoke with the secretary at Ivans and she said their kit would work on a CA bike. Would you have to delete the emission equipment for it to work right?? If so why? I don't see why a non CA kit would not work on a CA bike. I was also wondering why the dynojet kit sucks so bad. I went to two shops here in town and they both said the dynojet kits are just as good as anything else, and can be tweaked just like any other kit. I'm confused...... Sorry about all the questions, but I want to get my bike dyno tuned and keep getting conflicting information.