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yes tuning will void warranties on 5.0s. technically you cant even put a kn air filter on it from what the tsb said
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Well shoot I am already screwed then if that is the case. Might as well go tune! lol.
I have heard though that the cause of failure what ever it may be must be linked back to what modification was done to cause the failure. Obviously an engine tune won't cause something somewhere else like in the differential to fail spontaneously.
It seems like such a grey area... blah.... sooo tempted to tune...