I have original, used, non-modified intake manifold out of S14 motor (BMW M3. E30 chassis). Nothing is wrong with this mani. It is direct fit to 1986-1991 BMW M3. It can also be fitted to custom applications (man skills required). For example - BMW e30/e36 with motors M42/M44/M40/M43 or anything else you fill like.
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Item is located in North York.