I would pull the tornado and test it with just the filter. I'd bet you're not getting anything but placebo effect from it.
For the rotors, get them only for appearance reasons. Otherwise, they won't give you any improved performance and will speed the wear of your pads. The pads will do the job of improving performance. (speaking from experience here) Slotted rotors do help with wet braking, but that's about it.
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