This kit is for the 2.0L turbo LNF motor that is in the HHR SS, Solstice GXP, Sky Redline and Cobalt SS. It will need to be installed at the dealer and they flash the PCM to go from 14 to 22 PSI and still covered under factory warrenty. This is a brand new kit that was ordered as a gift for me a few weeks after I bought the Solstice GXP. The GM part number is 19212670 which can be check at gmpartsdirect.com. I have decided that I do not want to use it and offering it for sale because the restocking fee was to much. Retail is $650, we have almost $500 in it and I have it started out asking $400 on ebay. Please let me know if you have any questions or want to see the kit.
Cordell and POS VETT can tell you how big of a difference this makes on these cars. Cordell may also be interested in installing it since he works at a GM dealer.
http://www.ebay.com/itm/07-09-SOLSTIC-GXP-Turbo-Upgrade-Kit-Free-Shipping-GM-PERFORMANCE-19212670-/270920364650?pt=Motors_Car_Truck_Parts_Accessories&hash=item3f141cb26a&vxp=mtr