I have my Drag radials for sale on Craigslist.
Tires are mounted on ZR1 replicas. 17" by 9 1/2" with a 56 offset. On a G8 these need an adapter which I have.
Tires are 275/40-17. Nearly new. Dimples are still visible.
Adapters are hub centric to Chevy 5 by 4 3/4 lug centric.
I'm asking $475 picked up in San Antonio. Will travel a reasonable distance.
I'll post photos as soon as I have them resized.