Well, it's been several years since I've updated... Overall, haven't really done any mods. The K&N intake was removed for a stock air box when I moved to Texas because it was causing the car to fail emissions (ah, the falacy of a "Cold Air Intake" when you use a cone filter without a proper cold air box, especially on Miatas, where the stock air box location is directly over the exhaust manifold...
I do have a hard-top hoist, now, which allows me to remove the top without any help!
The interior is holding up well. I added a steering wheel cover to match the custom interior, as the original leather on the wheel is badly degraded. I also replaced the old headunit with a newer model (kept it Sony so I wouldn't have to worry about harness adapters) with aux in and mp3.
I also recently went back to a stock shift knob. I removed the previous knob to replace the shift tower fluid, as well as both rubber boots, and it did not screw back on correctly. The stock knob has a nicer feel to it anyway.
A few exterior shots with the hardtop on.