11-15 Duramax LML
If you are looking for a non-tuning required kit you will need to purchase part #436401
Proven ReliabilityThe CP3 fuel pump is proven to have longevity and to be reliable in performance applications.
Remove the WorriesThe CP4 has known failure issues that cannot be remedied. These issues, if they occur, can cause damage to other major fuel system components.
This Kit Requires TuningThis kit will need custom tuning to be able to run properly.
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