Stage One Injectors

The Classic Diesel Design's stage one injectors use a G code nozzle, hand finished for a quality spray pattern and custom pop pressure spec designed to get the most out of your injection pump while retaining a smooth idle and crisp injection event. These injectors have been proven to be a great match for anything from a stock turbo calibration, to the biggest of db4s. These injectors require a set of core injectors of the same code for recycling. If you are sending your cores afterwards, your core charge will be refunded once the set has been received and passed inspection for damage to the threads or injector bodies.

4/2020- Stage One and Stock Injectors no longer require cores for recycling.