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  1. P04DB CEL code after intake install

    Mustang EcoBoost Discussions
    So long story short I installed the K&N 57 series CAI and my CEL came on a couple hours after. I’ve doubled check connections. Don’t want to clear the code , the intakes paperwork states it shouldn’t throw a CEL. need more info on how to fix asap
  2. 2018 K & N drop in replacement filter

    Mustang EcoBoost Performance
    Any one change the stock filter to the K&N drop in? Thoughts?
  3. Just stage 3'd still not building enough boost

    Mustang EcoBoost Performance
    Hey guys I'm having a little difficulty with my setup here. I have a '16 PP with all the goodies to go stage 3, and just installed the Cobb stage 3 ots 93 octane tune with very little performance gain over the stage one Cobb tune. The main oddities I've noticed is that while under wide open...
  4. K & N (or other) drop in intake filter - Y/N?

    Mustang EcoBoost Performance
    Hi. Looking for low-cost/simple horsepower gains. Looking at a drop-in K&N intake filter. 1. Is there a noticeable difference, or is it just mental? 2. What are the gains you are seeing/think you're seeing? 3. Does anything else need to be recalibrated? 4. Any other suggestions beside...
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