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| SKU | FERKT4020 |
| MPN | KT4020 |
| Certifications | None |
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.
Customer reviews
Verified
Called for a part that was not in the assortment, but was available from one of their partners. Product could be ordered without difficulty and was delivered quickly. Very nice communication, thank you!
Verified
Had the parts that I could really only find elsewhere on the internet via an awkward import promotion from either the UK or the US. Tuningsupply had them on the website, at a good price and they were also delivered quickly. So good service!
Verified
So cheap!!! At first it was really a gamble for me to order my rims from Tuningsupply because they were so very much cheaper than elsewhere. And sure enough, on the ninth day DPD arrived at the door with my rims. Really a total of 360 euros cheaper!!!! For me a very big applause for this company.
Netherlands owned and operated
We want to deliver parts fast, efficiently, and with ease. Our mission is to continue to provide just that. To provide large inventory and efficient logistics while maintaining great service. As well as a community with like-minded auto enthusiasts that share the same passion as we do.
