I'm on the manufacturer's side on this issue. They sold you a car that was engineered for reliability. You decided to re-engineer it for performance. You push it past it's engineered specifications. If it breaks because of that you shouldn't be able to ask them to foot the bill.
It's interesting to note that they can examine the mileage in the cluster verses the PCM to see if you swapped computers. If they look they would have a good idea that I had Stage 1 installed even if I had removed it prior to taking it to the dealer.
It also has a really helpful diagram of the "spring" mod (LOL).
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 Black 03 PT Turbo & Black 94 Impala SS
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