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Mine popped at 70,000 miles so no warranty to use. It sounds like a leak when cold started, but goes away when warmed up. Tell tell sign is while running you hear it right by the manifolds. Thought I'd beat the issue with upgraded headers but now I have to unlock my pcm and have a tune on it.
I recently had the dreaded manifold leak. I did not want to have the issue again so I upgraded to BBK shorty headers. Same shorty length as OEM. Now I have a check engine light for O2 sensors. Is this going to require reprogram of the PCM/ECM or is it a bad O2 sensor. Asking for advice from...
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