New gal here from washington state. Just purchased my 2016 Black Cherry Z in August.
So far I've just tinted the windows, added a Kenwood Excelon DNX893s (Nav), a back up camera and had the calipers painted red. Vanity plates are on their way!
Was thinking of changing to high flow cats and cat-back from Fast Intentions but now think i may just keep it stock.
I'm pretty pleased with it, love the ever-changing color. Only negative thus far has been how quick it picks up dirt.