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87 4.0 headers?


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I welded my 91s manifold when I swapped my engine. and aftermarkets all crack too for the most part, same design just different name on it.  id you really want to upgrade look for a 00-01 split manifold. that's what my tj has and have no problems whatsever. it uses a separate manifold for 1-3 and 4-6 and then just a y pipe

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