+1. Rearward of the O2 sensors/catalytic converters have no effect on warranty.
Even going forward of those doesn't void the warranty -- Ford could just refuse to fix whatever problem you have that it can reasonably blame on the aftermarket exhaust and the computer re-tune it required. Of course, blaming such modifications is always their first instinct . . . and probably makes good business sense from their perspective
But staying to the rear of the cats is generally accepted as okay by the dealers, as it can't affect anything else. You won't get any grief.
dont count on it,you better have deep pockets if you plan to fight Ford on a warrenty claim with modified anything.I think it all depends on your dealer.I've seen this with both cars and bikes.If It's something major they will fight to void your warrenty and not cover it.
I think you should be ok with the deletes but I would keep the stock mufflers just incase.
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