For those looking for an exhaust tip, I bought this for my wife's HHR.

I bought a set of Impala tips from the same seller, and they've held up great!

http://www.cadillacperformance.net/ebay/exhaust/hhr2_thm.jpg

http://cadillacperformance.net/test//catalog/product_info.php?products_id=46

Couple bucks cheaper on ebay
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=250073655433 (http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=250073655433&ssPageName=STRK:MESE:IT&ih=015)