General Motors is now offering a dealer-installed performance upgrade for the Pontiac Solstice GXP, Saturn Sky Redline and Chevy HHR SS, that will give the cars almost 300hp and more than 300 ft-lbs of torque.
All three vehicles share the turbocharged 2.0-liter direct-injection four-cylinder engine that makes 260hp and 260 ft-lbs of torque. Thanks to the new GM Performance package for the cars, power will increase to 290hp and torque will hit 340 ft-lbs on manual transmission versions of the Solstice and Sky. Automatic version will get slightly less, at 325 ft-lbs and the HHR SS will get 315 ft-lbs.
The kit consists of an ECU reflash and a new manifold air-ressure sensor. And at just $650 its a serious bargain.
A similar package for the Cobalt SS is expected soon.
[Source: Car and Driver]