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The Moroso Ultra spark plug wire set for BBC under-header routing uses 90° plug boots and unsleeved conductors in red, tailored to big-block Chevy installations with under‑header clearance constraints. It provides angled boots that help clear exhaust headers while maintaining neat routing beneath the header plane, suitable for engine bays where space and heat management demand compact 90° plug ends.
Moroso BBC Under Header 90 Deg Plug Non-HEI Ultra Spark Plug Wire Set - Red
