There are many out there who have the base model Chevy HHR that still have fun modifying their car and sporting around in it. We offer a Stage 1 performance tune for the 2.2L Chevy HHR, whether you have the manual or the automatic transmission. Tuning is only available for the 2007 and newer model years, as the 2006 was unfortunately controlled by an ECU that is incompatible with most aftermarket tuning software.