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Hi there. So I had all of my injectors replaced OEM. Before that truck was tuned and was loud pulled really good. After new injectors installed truck went back to stock. Asked the mechanic what happened he has no clue. (Weird)!! What could be the issue. Thanks
 

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6.0 Powerstroke injectors need to be programmed , was this done ?

NOTE These injectors have TRIM (IQA) CODES that will need to be programmed into the ECM with a Scan Tool. Ensure the ECM has the correct trim codes programmed to get the longest life and best performance from the injectors.
 
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