Best mod:
My seat covers! Interior is an amazing place to be in now (also due to my ocean of carbon mixed with alcantara lol) and it goes very well with the red exterior. Crappy cell phone pics don't quite show the true colour.
Here's another pic
Also love all my bushings and inserts. Car reacts to every input immediately, with reduced slop.
Worst mods?
Knockoff leg style spoiler - flew off on the highway
Coilovers - wish I saved up longer for a high quality set