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Why is there a grid pattern on the bottom of manifolds? Posted by ryan [Email] (#2222) [Profile/Gallery] (more from ryan) on Mon, 24 Feb 2014 09:52:29 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I was underneath my Viggen the other day and once again noticed the underside of the intake manifold having a square grid pattern molded into it. Does anyone know why this is there?
posted by 198.137.2...
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