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Supertech Integral Valve Stem Seal Set of 16 for Mitsubishi EVO X 4B11 2.0L Turbo - VSI-M5.5V-16

If you're diving into the world of performance upgrades for your Mitsubishi, you might want to take a closer look at the Supertech Integral Valve Stem Seals. These seals are a game changer, especially if you're pushing your engine to the limits—whether you're on the drag strip, tearing up the rally course, or just enjoying a spirited drive on the backroads.

With over 30 years of experience under their belt, Supertech really knows their stuff when it comes to valves and valve train components. They’ve got a solid reputation in the racing community, and for good reason. These seals are designed to handle the heat and pressure of high-performance applications, ensuring that your engine runs smoothly without any unwanted oil leaks. You’ll appreciate the peace of mind that comes with knowing your engine is sealed tight, allowing you to focus on what really matters—performance.

Now, let’s talk fitment. If you own a Mitsubishi with the 4B11 engine, you’re in luck. These seals are compatible with a variety of models, including the DE, ES, and the iconic Evolution series, both GSR and MR. Whether you’re driving a Ralliart or just a standard ES Sportback, these seals will fit like a glove.

  • Mitsubishi - DE 4cyl 2.0l 4B11
  • Mitsubishi - ES 4cyl 2.0l 4B11
  • Mitsubishi - ES Sportback 4cyl 2.0l 4B11
  • Mitsubishi - Evolution GSR 4cyl 2.0l Turbo 4B11
  • Mitsubishi - Evolution MR 4cyl 2.0l Turbo 4B11
  • Mitsubishi - Evolution MR Touring 4cyl 2.0l Turbo 4B11
  • Mitsubishi - GTS 4cyl 2.0l 4B11
  • Mitsubishi - LE 4cyl 2.0l 4B11
  • Mitsubishi - Ralliart 4cyl 2.0l Turbo 4B11
  • Mitsubishi - Ralliart Sportback 4cyl 2.0l Turbo 4B11
  • Mitsubishi - SE 4cyl 2.0l 4B11

In short, if you’re serious about getting the most out of your Mitsubishi’s performance, these Supertech valve stem seals are worth considering. They’re built for enthusiasts who demand reliability and performance, and they won't let you down. Plus, if you have a unique setup or need something a little different, Supertech is open to custom solutions. It’s all about getting your ride just right.

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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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