FERREA Dual Spring Kit FERKT4011

( Brand: Ferrea ), ( Manufacturer Part Number: KT4011 ), ( Carb Acknowledgement Required: False ), ( Vintage Part: No ), ( Type: Dual Spring Kit ), ( Ipn: Ferkt4011 ), ( Manufacturer Warranty: 1 Year ), ( Part Type: Automotive ), ( Performance Part: Yes )

Review FERREA Dual Spring Kit For Honda fits S2000

Ferrea KT4011 Dual Spring Kit for Honda S2000

The Ferrea KT4011 Dual Spring Kit is an upgrade solution designed specifically for the Honda S2000 engine. This kit comprises a pair of high-performance, dual-spring assemblies that replace the original single-spring valve springs. The primary objective of this upgrade is to enhance the engine's performance, durability, and overall reliability.

Each spring assembly in this kit consists of two springs working in tandem. The first, or inner, spring is designed to control the valve's initial motion, while the second, or outer, spring is responsible for the valve's load-bearing function during high RPM operation. This design provides a more consistent valve force throughout the entire RPM range, leading to improved power output and throttle response.

These dual springs are manufactured using Ferrea's proprietary material, which offers superior strength and durability compared to OEM valve springs. The material is heat-treated to ensure consistency and precision in the spring's rate and height. This results in a more efficient valvetrain system that can withstand the increased stresses and temperatures encountered during high-performance driving.

The Ferrea KT4011 Dual Spring Kit also includes stainless steel retainers, which provide an excellent grip on the valve stems and ensure that the springs remain securely in place. The retainers are also designed to be more resistant to the heat and wear that can occur during extended high-RPM usage.

Installing the Ferrea KT4011 Dual Spring Kit requires some mechanical skills and know-how. However, the process is relatively straightforward and involves removing the old valve springs, installing the new dual-spring assemblies, and adjusting the valves to their proper clearances. It is recommended that the installation is performed by a qualified mechanic or experienced enthusiast.

In summary, the Ferrea KT4011 Dual Spring Kit is an excellent performance upgrade for Honda S2000 engines. It provides improved power output, throttle response, and durability by replacing the original single-spring valve springs with a more robust, dual-spring design. The kit's high-quality components and precise manufacturing make it a reliable choice for those seeking to maximize the potential of their Honda S2000 engine.

The Ferrea KT4011 Dual Spring Kit is a popular upgrade option for the Honda S2000's engine. This kit is designed to provide improved performance and durability compared to the original equipment manufacturer (OEM) springs. Here are some potential pros and cons of purchasing this kit:

1. Increased power: The Ferrea springs are designed to allow the engine to rev more freely and efficiently, which can result in increased horsepower and torque.

2. Improved response: The dual spring design helps to reduce engine compression, resulting in quicker throttle response and improved engine performance.

3. Enhanced durability: The Ferrea springs are made from high-quality materials and are designed to withstand the rigors of high-performance driving.

4. Better engine sound: The Ferrea springs can help to produce a more desirable engine sound, as they allow the engine to rev more freely and efficiently.

1. Cost: The Ferrea KT4011 Dual Spring Kit can be quite expensive compared to OEM springs.

2. Installation complexity: Installing the Ferrea springs can be a more complex process compared to OEM springs, as they require special tools and techniques.

3. Potential for engine damage: Installing aftermarket springs can potentially damage the engine if not done properly. It is recommended to have the installation done by a professional.

4. Loud engine: Some users have reported that the Ferrea springs can make the engine louder than stock, which may not be desirable for all drivers.

In conclusion, the Ferrea KT4011 Dual Spring Kit can provide significant performance benefits for the Honda S2000, but it also comes with some potential drawbacks. The decision to purchase this kit ultimately depends on the individual driver's preferences and goals. If you are looking for increased power, improved response, and enhanced durability, then the Ferrea springs may be a worthwhile investment. However, if you are concerned about the cost, installation complexity, potential engine damage, or increased engine noise, then you may want to consider other options.

If you are serious about maximizing the performance of your Honda S2000 and are willing to invest in high-quality aftermarket parts, then the Ferrea KT4011 Dual Spring Kit is a solid choice. However, it is important to ensure that the installation is done by a professional to minimize the risk of engine damage. If you are unsure about the benefits and drawbacks of this kit or have any concerns, it may be worth speaking with a knowledgeable mechanic or performance specialist before making a decision.

Details:

Some listings use stock photos. Ferrea Honda S2000 Dual Spring Kit, Kit Only Valves Not Included, PLEASENOTE. Some Pictures may vary from actual parts.

part #: kt4011 prices

• $1020.12-$1059.95

specifications voomvalve:

• for models: S2000
• for makes: Honda
• brand: Ferrea
• mpn: Kt4011
• carb acknowledgement required: False
• vintage part: No
• type: Dual Spring Kit
• ipn: Ferkt4011
• manufacturer warranty: 1 Year
• part type: Automotive
• performance part: Yes

returns voomvalve:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days

general voomvalve:

• Engines Engine Parts > Valvetrain Components > Valves
• condition: New

shipping voomvalve:

• transit: 2-5 Days
• type: Fixed
• class: Standard
• service: Standard
• cost: $15.00

payments voomvalve:

• wallet: Google-pay
• other
• credit card: Visa

seller voomvalve:

• # reviews: 6230
• rating: 100.0%
• city: Multiple

offer voomvalve:

• options: Ship-to-home
• sold: 0
• quantity: 3
• started: July 9, 2025
• availability: In Stock

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