Hi, I saw this on ebay:

http://cgi.ebay.com/ebaymotors/SOLSTICE-SATURN-COBALT-HHR-SS-2-0T-ECOTEC-CHIP-TUNING_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c39Q 3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286 Q2ec0Q2em14QQhashZitem370088076152QQitemZ370088076 152

I had done something similar to this for my Evo, with great results.

Feedback?

ChevyHHRWorld will be offering the SS tune that you can install without taking out or buying a new ecm shortly. We have A Tuner the tune is installed into and shipped to you. The 2.2 and 2.4 tune Via the Tuner runs $250, Yes there is a refundable deposit for the tuner.

http://www.chevyhhrworld.com/ChevyHHRWorld_Tune_Center.html

yay so they broke the 2.2?

Yes the did. Engine and Transmission are both tuneable.