Manifolds and Headers

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  • TOMEI EXPREME EXHAUST MANIFOLD SR20DET S13 S14 S15

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    TOMEI EXPREME EXHAUST MANIFOLD SR20DET S13 S14 S15 The quality on this “bottom-mount” manifold is amazing! Tomei, after many prototypes, concluded that a manifold with unequal length runners provided the greatest benefit to overall performance. This design allowed for the greatest gains in usable mid-range torque and greatly improved boost response. Full boost comes on […]