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gm v6, intake manifolds
What Is a Ported Intake Manifold, and How Much HP Does It Add?
A ported intake manifold has its runners and plenum reshaped to cut restriction. On a GM 3.6 V6, Tracy Lewis Performance quotes around 20 hp paired with a ported throttle...
Tracy Lewis Performance | August 18, 2026
gm v6, throttle bodies
What Is a Ported Throttle Body, and What Does It Do?
A ported throttle body has its bore and blade reshaped to reduce airflow restriction. On a GM 3.6 V6 that is worth 4-12 RWHP plus sharper throttle response.
Tracy Lewis Performance | August 18, 2026

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