These are built from new OE Reman injectors with all new parts throughout the injector then modified to your desired size. These are an exchange program but you can avoid the up front core charge by sending your cores in first.
Power Stroke 7.3L
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.