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I have installed or worked on just about every kit out there and I can say that PTuning and the Greddy kit are by far the most complete. Based on your original post and the want to make bigger power the GTX30R or the GTX35R would both be good choices.

You can take a look at my build threads and it will give you an idea of the Mase, Greddy, PTuning and Inline Pro.

Good Luck!