Never heard of a stock manifold failure. Im sure it will eventually let go if you keep increasing boost pressure.
Your signature says youre running 800ftlb torque.. that is approaching (if not well-in) the danger-zone for VQ headgaskets. You could be an exception. But if you are looking to stay on the safe side of things, I wouldnt be worried about your intake manifold I would be worried about your headgaskets.
Last edited by phunk; 02-04-2020 at 03:42 PM.
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