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  See more parts for Subaru Impreza
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Supertech 0.5mm Oversize Black Nitride Exhaust Valves for Subaru WRX 2002-2014, STI 2004-2021 - SEVN-1012-2-8

Supertech 0.5mm Oversize with Low Groove Black Nitride Exhaust Valves Subaru WRX | STI 2002-2021 SEVN-1012-2-8 | Vivid Racing

If you're diving into the world of performance upgrades, let me tell you about these Supertech Exhaust Valves. With over 20 years in the game, Supertech knows their stuff. They’ve been working hand-in-hand with engine builders to fine-tune their products, ensuring that every valve they produce is top-notch. These aren’t just any valves; they’re designed for serious performance enthusiasts who want durability and high flow rates.

Black Nitride Coating

Now, let’s talk about that Black Nitride coating. It’s not as common as chrome, but it’s gaining traction, especially with European and Japanese setups. What makes it special? For starters, the microhardness of this coating is impressive—sitting at a minimum of 800HV. That means it’s tougher than the stainless steel base. But don’t worry, it still maintains good ductility underneath that hard layer. Plus, the smooth surface finish reduces friction between the valve stem and guide, which is a big deal for performance. And if you’re running lead-free fuels or even some of those more explosive mixes, these valves are built to last. They’ll match up with all kinds of seats, whether you’re dealing with nodular iron or beryllium copper.

What’s Included

  • (8) Exhaust Valves

Features

  • Tailored construction for each specific application
  • Strict tolerances for a perfect fit
  • Superfinishing process to cut down on roughness and boost flow

Fitment

  • Subaru WRX 2002-2014
  • Subaru STI 2004-2021

So if you’ve got a Subaru WRX from 2002 to 2014 or an STI from 2004 to 2021, these Supertech valves (model SEVN-1012-2-8, by the way) are a solid choice. They’re 0.5mm oversize with a low groove and designed to elevate your engine's performance without any hassle. Just make sure to check fitment before you dive in. Happy tuning!

Other Part Numbers:
Supertech #sptSEVN-1012-2-8

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model
Subaru Impreza 2002-2011 WRX
Subaru Impreza 2004-2012 WRX STI
Subaru Impreza 2006-2007 WRX TR
Subaru Impreza 2006-2007, 2010-2011 WRX Limited
Subaru Impreza 2007, 2011-2012 WRX STI Limited
Subaru Impreza 2009-2011 WRX Premium
Subaru Impreza 2010 WRX STI Special Edition
Subaru Impreza 2010 WRX SE
Subaru Impreza 2010 WRX GT
Subaru WRX 2012-2014 STI
Subaru WRX 2012-2014 Base
Subaru WRX 2013-2014 Limited
Subaru WRX 2014 SE
Subaru WRX STI 2013-2014, 2017-2021 Sport-tech
Subaru WRX STI 2013-2021 Base
Subaru WRX STI 2014 Tsurugi Edition
Subaru WRX STI 2015-2021 Limited
Subaru WRX STI 2015 Launch Edition
Subaru WRX STI 2016 Series.HyperBlue
Subaru WRX STI 2017-2021 Sport
Subaru WRX STI 2018-2021 STI
Subaru WRX STI 2018 Type RA
Subaru WRX STI 2019 S209
Subaru WRX STI 2020 Kanrai Edition

Supertech Banner

Who is Supertech?

Supertech is a company located in Silicon Valley San Jose, California. It is the place where companies with the most cutting-edge technology are located. It allows Supertech to gain access to the latest technology that helps them create high-quality products.  Supertech is known for manufacturing some of the best aftermarket internal engine parts in the industry. Today, they are considered the leading brand in their market segment.

Valve Train Component Experts

With over 30 years of experience, Supertech was able to develop products that meet the demands of their customers. They offer high-performance valves and valvetrain components that are used by many engine builders and tuners everywhere.

Racer’s Brand Of Choice

Supertech provides the motorsport industry with top-notched products for virtually any type of racing discipline. Whether it’s Road Racing, Drag Racing, or Rally, they have the right parts for you. Each piece is carefully designed and manufactured to provide optimum performance and give racers the competitive advantage they need to win championships.

Purchase Supertech Products At Vivid Racing

If you are in the market for high-quality performance parts for your engine, Supertech is the brand for you. The company has always been on edge in creating innovative products that would keep up with the fast-changing automotive trend. Whether for the tracks or the street, Supertech guarantees that you will only get the best products from them. To know more about Supertech, visit Vivid Racing and check out their list of parts that fit your specific needs.



Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.

Supertech Performance Inc. shall not, under any circumstances, be liable for any special, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue, cost of purchased or replacement goods, or claims of customers of the purchase, which may arise and/or result from sale, installation or use of these parts.

The sole obligation of Supertech Performance Inc., shall be limited only to the products to be found defective, in either workmanship or material, after inspection performed by our company. This Limited Warranty applies only to the original purchaser of the product and only covers the replacement or repair of the product at our election.

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