I have seen two different configurations of rear spoilers for hhr!
which is which? Cause when I look at gym parts lists it just says spoiler

 

thread moved from the General section to the Mods/Exterior section

 

One is a hoop style, offered all years I believe, and then the "SS" or originally the Spring Edition (I think) HHR Spoiler, which is preferred unless you want to look like a PT Cruiser copycat. I got my SS style spoiler from a junker, and got it so cheap that I just broke the studs off and affixed it to my hatch via VHB 3M tape and Windshield silicone. Been on there for nearly two years now and is holding up great.