I agree with Coyote. I'm a definite skeptic of the Code3 pulley, but I just bought one. I spoke with Brandon on the phone, and he was very helpful. He answered all my questions, and even expididted my order, so that I can install my pulley in time for the Carlisle All Chrysler Nationals. I'm also thankful that Brandon had C32 dyno graphs on his site. Based on the dyno graph in this thread, I would never have bought one. Then compare prices between the Code3 and the 178mm pulleys, and it's a no brainer. Of course, if you want even more power, you can add a 178mm pulley. But I like the idea that it's practically undetectable by the warranty folks,
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and it performs equivalent to a 178mm crank pulley without over revving the other components. It just makes sense.
Give me a couple of weeks, and I'll post a full review.