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Anyone use FMS headers? Questions/comments? They'll be used on a 4.6 with manaflow cats and a 22" 5x8 oval. I really don't see a non PI motor getting $600 out of the JBA's.
They are not smog legal in some areas. i wasn't impressed with their quality. Go with some JBAs if you are going smog legal shorties. BBK makes some that are fair quality, too.