Reviewed By Mark H (Post Falls, ID) Reviewed for a 2007 Chevy HHR —11/12/2015 6:16 AM
Talk about bang for your buck, WOW. Pretty easy to use and the set up was a breeze.
Reviewed By Julius C (GORDONSVILLE, VA) Reviewed for a 2009 Chevy HHR —11/22/2012 2:26 PM
2009 HHR -2.7 MPG+gain, pays for itself in a year then premium fuel difference-MORE POWER, enhanced shifting-Installation: Disconnect battery by spare tire-Pull ECM cover under hood-Remove upper connector-Pull ECM forward and force up to release hole tabs-Remove lower connector-Install on lower terminal 2-Placed 1/2 inch thick non-adsorbent firm foam in ECM holder for lower terminal brake module clearance-Install connectors-Tie wrap using ECM holes around upper module-Install cover-Connect batte