Ok this thread is only because I need help founding correct spark plug for my setup, I actually run 12 psi of boost on an ecotec 2005 engine in my cavalier Z24, I'm looking for cooler plugs. If anyone could give my an advice about what are the best one, having part number would be great too, i dont found anything on the tuning shop in my city
http://cavalierdomination.monchar.com
