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Old 01-29-2019, 04:49 PM   #8
cleszkie
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Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,192
Re: Cracked Exhaust Manifold

I have had zero issues with my Dorman knock-off 2.5 inch center dump cast iron manifolds on my 4x4 Blazer. Its been about 10 years now. However, it should be noted that if you wrap your cast iron manifolds to reduce under hood temps or to just look cool, they will not be able to dissipate heat and will become very brittle very quickly. Ask me how I know!
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