Thanks TheStevo. Your rears match what I have, fronts probably do too but I need to find the part numbers and check.
Disclaimer: I have no pricing information and am not selling anything.
I spoke with the Director of Sales/Product Management from the Poway, CA office. Bottom line is this: They are actively developing products for the 2010+ Camaro. If the Camaro Bilstein setup(s) or another setup similar to the G8 could work with minor shock body/travel modifications, it may require an initial order of 500+ sets to have them customize a product for the G8.
On the topic of shock valving, if they needed to come up with a calibration for our vehicles they will do so in Poway, CA and they will find a local vehicle.
The reps were unaware that there was already a Commodore setup. IF it is a standard Bilstein product (not a one-off design for a specific Australian company or companies) the reps speculated that an order of 50 sets might be enough for them to throw them in a crate and ship them to the US directly.
Take this info as what it is, casual discussion with the sales director and no commitment whatsoever. I will follow up with them this week to provide the part numbers. If anyone would like me to ask anything else, let me know.
2009.5 g8 gxp m6