So with the season coming to a close, I'm starting to build my "wish list" for this winter.

One of the things on that list is a set of 15x9 wheels. What's everybody using? What offset works?

 

I am using 949 Racing 9UL wheels. 15x9 +36 with a 20mm spacer in the front, 15x8 with no spacer in the rear. Front spacer is there to fit over the brakes. Rears fit about right but the fronts have significant poke.

https://i.imgur.com/sbNSNws.jpg

At some point I will get custom ~18mm front and 2mm rear spacers made to make things fit a little better.

I don't know that you can go wider in STX for the rear due to the trailing arm.
Some people run 15x7 wheels with 205 section tires in the rear to make the car a little looser.