I have a 2005 FX4 w/5.4L, question i have is. I am looking for high flow cats to replace busted OEM's. I looked up on performancepeddler all i can find for a 5.4l is on an expy. Are the cats on the '05 f150s the same as on an expedition? Dealer tells me, that replacing one cat alone will run 1300 bux if not under the warranty.

Looking at getting the Mag High Flow cats.

Thanks in advance.

 

Call Troyer Performance and ask them what Cat they recommend and they will give you the part number. It cost me $315 to have my cats done.