They can tell that your PCM has been messed with. They won't be able to tell what was done just that you have reset or messed with the PCM
There have been others on some forums saying that they talked to their dealer, and they were ok with it, but most of the time they would not touch it or if they did it would voide their power train warranty. This was with 3.31's as some dealerships will install those as you can order from the factory that way. For the most part of what i have found is that it is bad news on the warranty side.
I'm just playing it safe, and did axel backs and a CAI as those are so basic and you can revert to stock in no time if you have to.
I haven't talked with my dealer, but i'm just not going to risk it. Plus i need to save up for some future mods. The next ones being lowering springs, and then some new wheels.
---------- Post added at 01:35 PM ---------- Previous post was at 01:33 PM ----------
Originally Posted by alludc
Thats a pretty tall risk to take from "internet word of mouth". Unless you know a ford master tech that you are friends with...i wouldnt fully believe that. And who knows what other cool tools they use when a regional inspector comes out to determine the cause of a blown engine.
if you are gonna play with fire, just remember you can get burned.
And the dealers will only do the 3.31 if you can find, which other members have said they knew people at the dealership (allfordmustangs), and i would like to get 3.73's, maybe 3.55's, but alas that will be 5 years from now.
So i'd rather not get burned.