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  See more parts for Toyota Corolla
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Supertech Dual Valve Spring Kit for Toyota Corolla MR2 4AGE 16V 1985-1991 SPRK-TC25D - SPRK-TC25D

Supertech SPRK-TC25D Spring and Retainer Kit

If you're looking to elevate your Toyota's performance, the Supertech SPRK-TC25D Spring and Retainer Kit is a top-tier choice for those serious about their build. Designed specifically for the Toyota Corolla (1985-1991) and Toyota MR2 (1985-1989), this kit is a perfect fit for those who want to overhaul their valvetrain with precision-engineered components.

Why Upgrade?

Upgrading your valve springs is essential for maximizing your engine's potential, especially if you’re pushing the limits with modifications or track days. The SPRK-TC25D kit provides a dual spring setup that enhances responsiveness and stability, allowing your engine to breathe better at higher RPMs. This means better throttle response and increased power delivery when you need it most.

Technical Specifications

  • Type: Dual Spring
  • Press. Seat: 73 @ 35.40mm
  • Max Lift: 14.40mm
  • Coil Bind: 21.00mm
  • Rate: 12.60 lbs/mm
  • Retainer: RET-2500/T1
  • Spring: SPR-TC25D
  • Spring Shim: SS-3012
  • Valve Stem Seal: VS-T6SM
  • Valve Guide: GDE-T4AGE-SM

Fitment

  • Toyota Corolla (1985-1991)
  • Toyota MR2 (1985-1989)

Customer Feedback

Corolla owners have reported significant improvements in engine performance after installing the Supertech SPRK-TC25D. One user noted, “After swapping out my stock springs for these, I noticed a sharper throttle response and a smoother power band, especially when hitting the higher RPMs.” Another MR2 enthusiast shared, “These springs paired perfectly with my turbo setup, allowing me to run higher boost without any issues.”

With the SPRK-TC25D kit, you’re not just buying parts; you’re investing in a performance upgrade that delivers real-world results. Get ready to experience the difference on your next drive!

Other Part Numbers:
Supertech #sptSPRK-TC25D

Proposition 65

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

Vehicle Make/Model
Toyota Corolla 1985-1986 LE Limited
Toyota Corolla 1985-1987 Sport GTS
Toyota Corolla 1985-1991 LE
Toyota Corolla 1985-1987 Sport DLX
Toyota Corolla 1985-1987 Sport SR5
Toyota Corolla 1985-1991 DLX
Toyota Corolla 1987-1988 FX
Toyota Corolla 1987-1988 FX16
Toyota Corolla 1987-1988 FX16 GTS
Toyota Corolla 1988-1991 DLX All Trac
Toyota Corolla 1988-1990 SR5 All Trac
Toyota Corolla 1988-1991 SR5
Toyota Corolla 1988-1991 GTS
Toyota Corolla 1989-1991 Base
Toyota MR2 1985-1989 GT
Toyota MR2 1988-1989 Super Charged

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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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