I sold my M6 GC with performance parts on it (don't ask me why!) and now selling it's original parts:
1-original kidney grill( night vision version) $150
2-carbon fiber rear diffuser $150
3-whole original exhaust with its tip (removed from car when it had 8 k miles), local pickup only $400
4- four burger 10 mm wheel spacers $60 for all 4