Engines and Components› Camshafts and Valvetrain

Tomei

Valve Spring Set for Subaru EJ205 EJ207 EJ255 EJ257 Blue

$180.00

SKU: TA304A-SB01A

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Tomei VALVE SPRING SET is a high-performance component designed for Subaru EJ205, EJ207, EJ255, and EJ257 engines. It is compatible with Subaru WRX and WRX STI models. The springs are constructed from SWOCN-V material with a nitride processing and feature a blue color.
Show original supplier description
The Tomei VALVE SPRING SET is engineered for high-performance Subaru EJ205, EJ207, EJ255, and EJ257 engines, specifically fitting WRX and WRX STI models. These valve springs are constructed from durable SWOCN-V material, processed with a nitride finish for enhanced longevity, and finished in a striking blue color. With a compatible lift of up to 11.0mm, these springs are designed to reliably transfer camshaft movement to the valves, even at high engine speeds. The specifications include a free length of 43.1mm, set length of 36.2mm, lift length of 25.4mm, and compressed length of 23.1mm. The set length load is 23.8±7% kgf, and the lift load is 74.8±7% kgf. These precise load and length characteristics ensure optimal valve control and engine responsiveness. It's important to note that the installation of such performance components typically requires experienced, qualified professionals and may necessitate specialized tools.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandTomei
Part NumberTA304A-SB01A
CategoryEngines and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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