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The Rywire COP adapter plate for Honda H‑series engines adapts coil‑on‑plug hardware to H‑series cylinder heads, offering a neat retrofit path for updating ignition systems. It preserves mounting alignment and valve‑cover clearance to minimize fabrication, helping installers convert to COP setups more cleanly. Suited for H‑series engine upgrades and swap projects requiring reliable adapter hardware.
Rywire Honda H-Series COP Adapter Plate
