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FAST LSXHR 103mm tunnel‑ram intake manifold engineered for rectangular port LS3 and raised rectangular port LS7 engines. Its polymer tunnel‑ram design is lightweight and resists heat soak, features removable runner stacks for tuning, a reversible top for forward or firewall throttle body orientation, two nitrous nozzle bosses per runner, and a 103mm throttle opening; rated for up to 45 psi continuous pressure.
FAST LSX Manifold 103MM Gen III LS Rectangular Port - Black
