Quote:
Originally Posted by GQrider
I have a '06 F150 SCREW 5.4 2WD 4:10 LSD, Magnaflow S-Exit Ctbk, AFE Intake Tube only, LPD Trans Coolers, Gryphon Custom Tunes & I've enjoyed this set up from Bill for over 2 years now. I want to get Long Tube High Flow Cat Headers from Dynatech and wanna know if another custom tune is required to run those or can I run the tunes I have?
According to Dynatech, a stock F150 with their Header/Cat combo doesn't require any special tune.
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You are right on that.
But recalibrating your custom tunes to accomodate for them soil be an extra added benifit.
Also make sure to have new front o2 sensors installed.