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Ferrea Dual Valve Spring / Retainer / Seat Kit (STi / EJ25 / Drag Version)

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Ferrea Racing

Ferrea Dual Valve Spring / Retainer / Seat Kit

PART# FER S10097 / E11064 / SL1051
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$ 818.88   $ 1,137.44
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Harmonics or high frequency fatigue is present in all performance engines and will usually destroy the valvetrain if not controlled. Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear.Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicone steel. These springs are manufactured with state-of-the-art equipment. Our springs are heat-treated and stress-relieved, which dramatically increases the spring's life. Strict quality control procedures and cycle testing ensures consistency from batch to batch. Ferrea valve springs provide teh stability needed for high lift, high rpm racing engines, while minimizing the load loss for today's aggressive valvetrain combinations.We expanded our Springs offering to include many new designs and applications. Our goal is to provide the best possible valve-train combinations for all racing environments from circle track, drag racing, motorcycle racing and offshore marine racing.SpecificationsSpring O.D. - 28mmSpring I.D. - 15.88mmSeat Pressure - 90 lbs.Open Pressure - 215 lbs.Rate Inch - 317 lbs.Coil Bind - 21.5mmMax Net Lift - 14mmThis kit is more than just the dual springs, it is an entire kit which includes Ferrea Enhanced Alloy Dual Springs, Ferrea Titanium Retainers, and Ferrea Spring Seat Locators.
Harmonics or high frequency fatigue is present in all performance engines and will usually destroy the valvetrain if not controlled. Properly designed valve springs will control the dominant harmonics, provide the needed stability, and reduce valvetrain component wear.Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicone steel. These springs are manufactured with state-of-the-art equipment. Our springs are heat-treated and stress-relieved, which dramatically increases the spring's life. Strict quality control procedures and cycle testing ensures consistency from batch to batch. Ferrea valve springs provide teh stability needed for high lift, high rpm racing engines, while minimizing the load loss for today's aggressive valvetrain combinations.We expanded our Springs offering to include many new designs and applications. Our goal is to provide the best possible valve-train combinations for all racing environments from circle track, drag racing, motorcycle racing and offshore marine racing.SpecificationsSpring O.D. - 28mmSpring I.D. - 15.88mmSeat Pressure - 90 lbs.Open Pressure - 215 lbs.Rate Inch - 317 lbs.Coil Bind - 21.5mmMax Net Lift - 14mmThis kit is more than just the dual springs, it is an entire kit which includes Ferrea Enhanced Alloy Dual Springs, Ferrea Titanium Retainers, and Ferrea Spring Seat Locators.

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MAP Limited Lifetime Warranty

1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

For warranty evaluation please create a support ticket via this form Click Here For Customer Service.