Engines and Components› Camshafts and Valvetrain

Ferrea Racing

Ferrea Mitsubishi Evo X 4B11T Dual Spring Kit

$1,041.41

SKU: F00K KT4014

In Stock
In Stock
Ships by Jul 30
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30 Days Return
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Description

Ferrea dual valve spring kit for the 4B11 Evo X includes a full set of 16 dual springs, titanium retainers, seat locators, and valve locks. Ferrea valve springs are heat-treated and stress relieved, dramatically increasing spring life. These provide stability for high lift, high rpm racing engines, minimizing load loss for aggressive valvetrain combinations. Properly designed valve springs control dominant harmonics, provide stability, and reduce valvetrain component wear. Ferrea valve springs are developed from high-strength alloys, including premium-grade chrome silicon steel.

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Specifications

BrandFerrea Racing
Part NumberF00K KT4014

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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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