Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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Description
Ferrea Subaru WRX STI Endurance Dual Spring KitExperience uncompromising performance and reliability with the Ferrea Subaru WRX STI Endurance Dual Spring Kit. Designed specifically for Subaru enthusiasts and racers, this valve spring kit delivers exceptional durability and precision under the most demanding conditions. Engineered to optimize valve control, the dual spring setup ensures reduced valve float and enhanced horsepower potential. Built for endurance, these springs manage high RPMs with
Experience uncompromising performance and reliability with the Ferrea Subaru WRX STI Endurance Dual Spring Kit. Designed specifically for Subaru enthusiasts and racers, this valve spring kit delivers exceptional durability and precision under the most demanding conditions. Engineered to optimize valve control, the dual spring setup ensures reduced valve float and enhanced horsepower potential.Built for endurance, these springs manage high RPMs with consistent spring pressure to maintain engine efficiency and power. The Ferrea brand is renowned for its quality and innovation in racing engine components, making this kit a trusted choice for those upgrading their Subaru WRX STI engine. Installation is straightforward, allowing hobbyists and professionals alike to upgrade without hassle.
Whether you're building a track-focused car or seeking reliable upgrades for spirited street driving, the Ferrea Dual Spring Kit supports your performance goals. Count on Tuningsupply for fast European shipping, transparent pricing, and passionate service from fellow automotive enthusiasts. Elevate your Subaru’s valve train with parts designed to perform and last under pressure.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 2341 reviews
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Product Reviews
★★★★★ 4
Works much better than the original applicator which left streaks and overlaps
Works much better than the original applicator which left streaks and overlaps. Much easier to use on contours and crevices.
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Reviewed in the United States on October 14, 2014
★★★★★ 5
Works well
Good applicator for poli glow
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Reviewed in the United States on December 7, 2025
★★★★★ 5
Game Changer!
So much better than the applicators. Easier to get nice even application on RVs. Does much better getting around the awning poles and different covers.
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Reviewed in the United States on March 12, 2021
★★★★★ 5
Spreader mitt
Worked extremely well
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Reviewed in the United States on December 10, 2024
★★★★★ 5
Absolutely a miracle substance!
Material Type: Powder Ox, Size: 16 oz
I have a couple of kayaks made of various resin types, and all were showing severe signs of oxidation on their paint jobs. The newest is probably 20 years old, so you can imagine the oxidation. All I can say is, I was greatly surprised and pleased with the result. Other than the scratches, the oxidation was almost entirely removed! I'm a true believer in this stuff!
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Reviewed in the United States on March 3, 2026