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 1696 reviews
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Product Reviews
★★★★★ 5
My nine year old daughter loved it, now her friends are borrowing it.
Format: Paperback
My nine year old daughter loved it. She read it the day she got it, and then re-read the first two volumes. As a retired Language Arts teacher, books like this warm my heart. Excellent engaging story line.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Great condition, beautiful artwork, great for a broad range of reading levels
Format: Paperback
My sisters are loving this series. We pre-ordered the 3rd graphic novel and they’re already asking if there will be a 4th!
My sisters are both in 4th grade but sit at very different reading levels. “A” has a difficult time with reading comprehension and focus, so graphic novels have been a wonderful way to introduce her into the magical world of books. I firmly believe that graphic novels have helped her gain confidence and strengthen her reading skills… she now regularly reads chapter books!
Sister “B” is a very strong reader; she loves both chapter books and graphic novels. Sorceline and Wings of Fire are her absolute favorites right now. This is a great option for when she still wants to be engrossed in a story but focus some more on imagery, giving her brain a break from the heavier stuff.
We can’t wait to see if more books will be released in this series.
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Reviewed in the United States on October 23, 2025
★★★★★ 5
Graphic novel for 11 year old
Format: Paperback
Great book for an 11 year old.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Great read!
Format: Paperback
My daughter, 11, really enjoyed this series and was excited to read this one as she’s been waiting!
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Reviewed in the United States on January 20, 2026
★★★★★ 5
Great series
Format: Paperback
My 12 year old daughter LOVES this series. I ordered them for her as a Yule gift on a whim and am so glad I did.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
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