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  See more parts for Audi A8 Quattro
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Supertech Dual Valve Spring Kit for Audi V8 4.2L 40V 2003-2008 A8 RS6 S4 S8 - SPRK-AUDI4.2T

Supertech SPRK-AUDI4.2T Dual Valve Spring Kit

The Supertech SPRK-AUDI4.2T Dual Valve Spring Kit is engineered for precision and performance, tailored specifically for the Audi V8 4.2L 40V engines produced between 2003 and 2008. This kit includes meticulously matched components designed to enhance your engine's valvetrain efficiency, making it an ideal choice for those seeking to maximize performance in their Audi.

Key Specifications

  • Type: Dual Spring
  • Seat Pressure: 60 lbs @ 36.60 mm (Intake)
  • Max Lift: 13.60 in (Intake) / 13.70 in (Exhaust)
  • Coil Bind: 23.00 in (Intake) / 19.50 in (Exhaust)
  • Spring Rate: 6.70 lbs/mm (Intake) / 10.00 lbs/mm (Exhaust)
  • Retainer Part Numbers: RET-AU5VI/T2 (Intake), RET-AU5VE/T4 (Exhaust)
  • Seat Locator: SEAT-H1000 (Exhaust only)
  • Spring Part Numbers: SPR-A2095 (Intake), SPR-H1002D-AU (Exhaust)

Fitment

  • Audi A8 Quattro (2003-2008)
  • Audi RS6 (2003)
  • Audi S4 (2004-2008)
  • Audi S8 (2003)

Installation of the SPRK-AUDI4.2T kit is straightforward, ensuring a seamless upgrade to your valvetrain system. The dual spring design provides enhanced stability at higher RPMs, making it suitable for both street and track applications. With these components, expect improved throttle response and overall engine performance, aligning with the demands of performance-oriented driving.

Other Part Numbers:
Supertech #sptSPRK-AUDI4.2T

Proposition 65

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

Vehicle Make/Model
Audi A8 Quattro 2003-2008 Base
Audi RS6 2003 Base
Audi S4 2004-2008 Base
Audi S4 2004-2008 Cabriolet
Audi S8 2003 Base

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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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