MACE 72MM ELECTRONIC THROTTLE BODY TO SUIT HOLDEN CALAIS VE ALLOYTEC LY7 3.6L V6Mace Throttle bodies are manufactured to meet and exceed the OE specifications. It regulates the air intake into the combustion chamber, directly affecting engine performance. A butterfly valve is used to control the operation and is calibrated with a position sensor, which looks after its position by sending signals to the electronic control unit (ECU) Installing an electronic throttle body is a very cost effective way to bump up the performance of