My Z is my DD too. I have the FI with 12" resonators. There is a small amount of drone but it's never bothered me. It doesn't help my bluetooth phone but it's nothing obnoxious.
I agree with Red. You really don't need a tune with just an exhaust and intake. I'd wait until you have at least 3 breather mods before I spent the money on getting it tuned.
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