Actually the 6sigma kit only had parts that either fit or were specific to the GZ. Not too expensive either ($50 including shipping). I definitely recommend them if you ever need a jet kit for anything.
The reason I jetted the carb wasn't to increase performance, it was only so that I could ditch the huge stock air box for a pod style filter. I'm not really planning on drilling the slide, I was just curious to see if it worked for anybody else.
That said, it does run better now. It takes way less time to warm up from a cold start and it runs cooler than it did. Also, the pod filter allows for some sweet intake noise during acceleration.
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