Siemens 60# Injectors - Set of 4 - Sonic/Cruze Engine which we highly recommend

which we highly recommend

BUICK REGAL 2004

We simply delete that code in the ECM file

'04+ Grand Prix' ZZP intake

Siemens 60# Injectors - Set of 4 - Sonic/Cruze Engine which we highly recommend60# injectors for the 1. 4t are only intended for full E85 high power builds. If you are running gas or flex you will want the 42# injectors found here. Stock 1. 4T injectors are standard length 33# injector with an EV1 plug. This is the most common style of injector. As you add mods to your vehicle, eventually you will need to upgrade the injectors. The stock injector max around 170WHP and are sufficient for all but the most heavily modified stock