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Manley Alloy Valve Springs 16pc 1.050 Subaru WRX |STI | EJ20 | EJ25 2020-2021
$131.89

Manley Alloy Valve Springs 16pc for Subaru WRX | STI | EJ20 | EJ25 (2020-2021)

Looking to upgrade your Subaru WRX or STI? The Manley Alloy Valve Springs 16pc 1.050 set is engineered specifically for the 2020-2021 models with EJ20 and EJ25 engines. These valve springs are tailored to meet the demands of high-performance driving, ensuring your engine runs smoothly even at high RPMs.

Features That Make a Difference

Crafted from super clean chrome silicon high tensile strength steel alloy, these valve springs are built to last. The classified heat treatment and shot peen processing enhance their fatigue life, making them ideal for those who push their engines to the limit. Here’s what you can expect:

  • Outer Diameter: 1.050"
  • Inner Diameter: .755"
  • Seat Pressure: 60 @ 1.420"
  • Open Pressure: 151 @ 1.050" / 187 @ .895"
  • Stock/Max Lift: .370"/.525"
  • Coil Bind: .845"
  • Spring Rate: 245 (lbs./in)

Why Choose Manley Valve Springs?

These valve springs are designed to handle the rigors of aftermarket camshafts, making them a perfect match when paired with Manley Performance Titanium Retainers. With this combination, your engine can reach impressive max revs of up to 10,000 RPM, ensuring you get the most out of your performance upgrades.

Fitment Information

These valve springs are specifically compatible with:

  • Subaru WRX: 2020-2021
  • Subaru STI: 2020-2021
  • Engine Types: EJ20, EJ25

Customer Feedback

Users have praised the Manley Alloy Valve Springs for their durability and performance. Many have noted significant improvements in engine response and stability, especially when paired with high-performance camshafts. Customers appreciate the precision engineering that allows for high RPM operation without compromising reliability.

Upgrade Your Subaru Today!

If you're serious about performance, these Manley Alloy Valve Springs are a smart investment. They not only enhance your engine's capabilities but also ensure that you can enjoy every moment behind the wheel with confidence.

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Vehicle
2002-2012
Subaru Impreza
2002-2003, 2017
Subaru STI
2012-2021
Subaru WRX
2013-2016
Subaru WRX STI

Manley Logo

How did Manley Performance Start?

Manley Performance, formerly called Manley Speed Equipment, was established in 1966 by Hank Manley shortly after his graduation from Brown University. His interest in the performance and racing traced back to 1960 when, at age 17, he rebuilt a 312 CID Ford V8 engine, installed a camshaft and three two-barrel carbs, and raced a ’56 Thunderbird on New Jersey’s streets. Initially, the company’s product lineup included stainless valves, lifters, camshafts, forged pistons, vanadium valve springs, pushrods, and timing chain kits. By 1998, Manley had outgrown its first Bloomfield, New Jersey facility and bought several acres in Lakewood, New Jersey. It was around this time that the brand’s name formally changed to Manley Performance. Nearly a decade later, the production space doubled in size.

Evolving in the Automotive Space

Led by GM Michael Tokarchik in 2002, Manley entered the high-performance passenger car market as an OEM supplier of connecting rods for the 2003/2004 Ford SVT Mustang Cobra. Production reached 2500 rods per week without missing a single delivery date. Ford awarded Manley its highest ever supplier rating. Manley’s presence in the OEM market continued from there as a supplier for the Ford GT. After nearly 50 years since its inception, Manley continues to be globally recognized as the leading manufacturer of performance valves, connecting rods, cylinder head components, pushrods, drive and oil systems, and several other engine parts.

What is Manley’s Specialty?

Manley Performance specializes in high-performance engine internals that range from stock replacements to full-on race applications. They have been the standard of the industry since their inception; a fact that still remains true now as they have ventured into new markets. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. The brand has developed a wide range of new products for growing markets that include sport compact, Ford modular, and Chevy LS. Manley also maintains its leadership role with the traditional V8 engine business.

Get Manley Performance at Vivid Racing

If you are in need of a serious upgrade to your engine, then Manley Performance parts should be on your list. Like all of our suggested manufacturers, Manley uses the best materials available to ensure a quality part for your engine. We carry Manley connecting rods, crankshafts, pistons, and valve components. The large lineup of domestic parts includes sport compact vehicles, Ford modular engines, GM’s LS series internals, and HEMI product upgrades for Chrysler.

If you can’t find what you’re looking for or need help choosing the right part for your car, call our sales team at (480) 966-3040. We are here to make your buying experience a breeze.

Due to the intended usage of the products sold by Manley Performance Products, Inc., they are sold WITHOUT WARRANTY OR ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR THE INTENDED PURPOSE. Manley Performance Products, Inc. shall not, under any circumstances, be liable for any special, consequential or incidental damages, including but not limited to loss of profits or revenue, loss of other property or equipment, cost of purchased or replacement of goods, or claims by customers of the purchaser, which may arise and/or result from the sale, installation or use of these parts. Installation of parts intended for “off-highway” use could adversely affect the vehicle manufacturer’s warranty coverage. Subject to applicable state law. Some items may not be legal for use in California on pollution controlled vehicles. All weights specified are approximate and subject to manufacturing tolerances. Manley Performance Products, Inc. reserves the right to make changes in design, specifications, materials, or make product changes without incurring liability or obligation with respect to similar product previously manufactured. If technical advice is offered or given in connection with the use of any Products it will be as an accommodation to Buyer and without charge and Seller shall have no responsibilities or liabilities whatsoever for the content or use of such advice.

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