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Supertech Performance VWEVI-1002S Inconel Exhaust Valve Standard Size Single Groove

(Volkswagen Jetta 2005-14, Beetle 2012-14, Passat 2006-09, 2012-14, Golf 2010-14, Tiguan 2009, CC 2009, Rabbit 2006-09, Eos 2007-09 + 5 more models)

Manufacturer

Picture for manufacturer Supertech Performance

Part Number

VWEVI-1002S
9 reviews
Sale Price

$35.71

Estimated ship date Thursday, November 26

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Product Details

The Supertech Performance VWEVI-1002S is a high-performance Inconel exhaust valve engineered for demanding forced-induction and high-heat engine applications. Manufactured from a nickel-based Inconel 751 / Nimonic super alloy, this valve is purpose-built to withstand the extreme exhaust gas temperatures generated by turbocharged and supercharged engines where standard stainless steel valves fall short.

Key Specifications:

  • Head Diameter: 28.00mm (Standard)
  • Stem Diameter: 5.96mm
  • Overall Length: 101.80mm
  • Material: Inconel (Nickel-Based Super Alloy)
  • Groove Type: Single Groove
  • Valve Type: Exhaust
  • Required Keepers: KPR-6S/7 (2 per valve — sold separately)

Key Features:

  • One-Piece Inconel Forging — Provides superior hot strength, creep resistance, and oxidation resistance for sustained high exhaust gas temperatures
  • Superfinished Stem — Precision-ground stem surface minimizes friction between the valve stem and guide for reduced wear and longer service life
  • Hardened Tip — Tip hardened past 52 HRC for durability against repeated valve train contact
  • Single-Groove Stem Design — The radial-style single groove provides a cushion for the keeper lock, protects the stem against excessive valve movement, and restricts rotation to prevent the accelerated wear associated with factory triple-groove designs
  • Application-Specific CNC Machining — Precise seat geometry ensures reliable sealing and maximized flow under race and high-boost conditions

Inconel valves are the preferred choice for turbocharged, supercharged, and endurance racing builds that see prolonged elevated exhaust gas temperatures where stainless steel valves cannot maintain adequate hot strength. The VWEVI-1002S is backed by Supertech's decades of motorsport manufacturing experience and is trusted by professional engine builders across road racing, drag racing, and rally disciplines.

Important: This valve is sold individually (per valve). Order the quantity equal to the number of exhaust valves required for your engine. Single-groove valve keepers KPR-6S/7 (2 per valve) are required and must be ordered separately.

Products specifications

Fits

Volkswagen Jetta 2005-14, Beetle 2012-14, Passat 2006-09, 2012-14, Golf 2010-14, Tiguan 2009, CC 2009, Rabbit 2006-09, Eos 2007-09; Audi A4 Quattro 2005-09, TT Quattro 2009, A4 2005-09, A3 2006-09, TT 2008-09

Head Dia

28.00mm (STD)

Length

101.80mm

Material

Inconel

Stem Dia

5.96mm

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