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Supertech Dual Valve Spring Kit for Toyota 1ZZ-FE | 2AZ-FE, SPRK-TS1015-TC, 16 Springs - SPRK-TS1015-TC

If you're diving into a valvetrain overhaul, you really can't go wrong with the Supertech Spring/Retainer kits. These aren't just any springs; they're precision-engineered sets that are designed to give your engine the performance boost it deserves. I’ve used these kits on my own builds, and let me tell you, they deliver on quality, performance, and value like no other.

What I love about these kits is how well they’re matched. You get everything you need for a complete overhaul, and they really make a difference in how your engine breathes. With a seat pressure of 81 at 34 and an open pressure of 226 at 12, these springs hold their ground even when the RPMs start to climb. They can handle a max lift of 12.50mm, so if you're pushing your engine to the limits, you won’t have to worry about coil bind, which is set at 20.70mm. The rate is also solid at 12.1, giving you that perfect balance between performance and reliability.

Each kit comes with 16 springs (model SPR-TS1015), 16 retainers (RET-TS5.5/TC), and 16 seat locators (SEAT-TS/TC), so you’re fully equipped for your project. The inner spring dimensions are well thought out too, with an inner diameter of 15.20mm and an outer diameter of 27.50mm. It’s these little details that really matter when you’re building something that needs to perform under pressure.

This kit fits Toyota engines like the 1ZZ-FE and 2AZ-FE, making it a great choice if you're working on those models. If you’re serious about getting the most out of your engine, these Supertech kits are a solid investment. They’re built for enthusiasts who want the best, and from my experience, they definitely deliver.

Other Part Numbers:
Supertech #sptSPRK-TS1015-TC

Proposition 65

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

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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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