Engines and Components› Camshafts and Valvetrain
PSI Pro
Beehive Valve Spring Set
SKU: 1515ML
Moderate — 2–4 hours
Description
They are specifically engineered for applications requiring up to .650″ lift, ensuring optimal valve control. The PSI 1515ML springs are an ideal choice for Circle Track and Road Circuit racing due to their enhanced endurance and reliability.
Fitment
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Available on iOS & Android
Specifications
| Brand | PSI Pro |
| Part Number | 1515ML |
| Category | Engines and Components |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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