This injector comes from MOPAR, also known as the Stage 1 SRT-4 injector or the Caliber SRT4 injector, it is a great plug and play injector on the HEMI as a 55lb fuel injector. Use of this injector will require custom tuning in order to adjust idle and partial throttle fuel trim. Contact HHP for all your tuning needs.
Injector rating is approximately 55lb on a 58 psi fuel system.
Recommended Uses: This injector is a great option for stock 5.7L's and 6.1L's running forced induction combinations up to 525rwhp and naturally aspirated builds up to 575rwhp.
Replaces: 4891574AB, 4891574AD
