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If you add a tuner like Black Maxx or other...will it require the addition of a fuel delivery system like an AirDog or Fass system? Will the OEM system not fuel the truck properly with a tuner. Or is this something that will be needed with other mods like new injectors or bigger turbo's so on...thoughts?
 

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The H&S tuners will work fine with all factory components. If you upgrade injectors/nozzles then you will need a bigger fuel delivery system (not just FASS or AirDog, you'll need CP3 mods too). It never hurts though (other than your wallet).
 
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