I sadly traded in my BRZ the other day. I parted out a lot of the mods locally using the Facebook group, but I still have some stuff left and thought I'd post it here. Feel free to make me offers as this stuff is useless to me now.
All of this stuff is low mileage and in excellent condition. I only drove my BRZ when it was nice out since it wasn't my daily driver. I traded it in with around 13k miles and a lot of this stuff wasn't added until 5 or 6k.
Openflash UEL header: $400
http://www.openflashtablet.com/Automotive/FRS/OFH/
Perrin exhaust tips for stock catback: $60
(Pictured on and off the car and side by side with OEM tips. These are fantastic if you want to keep the stock catback and not have the back end look unifinshed. When I installed the header I wanted to keep the stock catback to quiet it down, but ended up getting the Q300)
Rays Gramlight 57G 17x7.5 wheels (hyper bronze but look more like gun metal) (slightly wider than OEM wheels, but otherwise same specs, except a lot lighter and more attractive!)(NO rash/Excellent condition): $800
Subaru Genuine Parts rear diffuser: $150
JDM Clear Side Markers: $60
Carsmo leather armrest: $80
Overland Designs Alcantara w/ red stitching door pull straps: $280
Raceseng reverse lockout: $60 SOLD
Make me offers! I'll ship the smaller stuff, but not the wheels. I live in Sturbridge MA, and I am in West Hartford, CT on Tuesdays and Thursdays.