Agreed on other Si's! Great point!
My 2nd is Subaru WRX and STI. Easy to beat or run even with in typical stoplight and roll races. Buddy in my town has an STI with intake, header, exhaust, and tune and I was shocked the first time we pulled, he barely won. With a tune we always run pretty...
I had to badger him to get him to send me the intake. He didn't respond so I threatened a paypal claim and a police report. He figured out the shipping issues shortly after that.
For all 10th gen civics, it's a 12x1.5 lug nut. Stock lug nuts are spherical based, and you need conical based for aftermarket wheels. I got mine at autozone with locks for 35 dollars.