Stage 1 camshafts for DOHC engines: optimized low‑rpm torque and +5–10% power. Designed with advanced valvetrain software and dyno‑tested in the USA, CNC‑machined from hardened 8620 steel for precise cam profiles. Drop‑in install with stock springs (unless noted). Some models feature ITR technology for enhanced response and added mid/high‑rpm gains.
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