Description
Maximize your VW or Audi 2.5L engine’s performance with the Integrated Engineering (IE) Valve Spring and Titanium Retainer Kit – the only solution engineered specifically for the unique valvetrain characteristics of the VW/Audi 07K 5-cylinder platform. Whether you’re running a larger turbo, aggressive cam profile, or pushing high RPMs with advanced tuning, this precision-matched kit ensures stable valve operation, prevents valve float, and enhances overall engine reliability.
Kit Includes
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(20) Precision-wound intake & exhaust valve springs
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(10) Exact-tolerance titanium intake retainers
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(10) Exact-tolerance titanium exhaust retainers
Key Features
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Designed specifically for 2.5L 5-cylinder VW/Audi engines (07K platform)
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Prevents valve float in high-RPM and high-boost applications
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Engineered with optimal spring rates for performance and reliability
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Constructed from the world’s highest-quality spring wire
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Multi-stage shot peening process reduces fatigue and failure
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Lightweight titanium retainers with tight tolerances and exceptional surface finish
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Tested extensively in real-world conditions at IE's Salt Lake City R&D facility
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Direct-fit upgrade; no guesswork or generic spring compromises
Precision-Engineered for Real Performance
Unlike generic or poorly matched spring kits, IE's 2.5L valve spring and retainer package is the result of comprehensive testing, in-house engineering, and performance validation on the dyno and track. The spring rates have been carefully selected to suit the dynamic needs of the 2.5L valvetrain, supporting high-revving builds without excessive stiffness that could damage cam lobes or lifters.
The titanium retainers are CNC-machined with exceptional tolerance control, delivering lightweight strength that increases valvetrain response and longevity. With years of field testing and R&D, this kit offers unmatched reliability under extreme engine conditions.
Applications & Fitment
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Audi TTRS (8J) 2008–2015 – 2.5L FSI 5-cylinder
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Audi TTRS (8S) 2015+ – 2.5L FSI 5-cylinder
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Audi RS3 (8P) 2006–2013 – 2.5L FSI 5-cylinder
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Audi RS3 (8V) 2015+ – 2.5L FSI 5-cylinder
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Volkswagen Golf (MK6) 2010–2014 – 2.5L
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Volkswagen Rabbit (MK5) 2006–2009 – 2.5L
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Volkswagen Jetta/GLI (MK5) 2006–2010 – 2.5L
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Volkswagen Jetta/GLI (MK6) 2010–2014 – 2.5L
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Volkswagen Jetta SportWagen (MK6) 2011–2014 – 2.5L
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Volkswagen Beetle (1C/9C/1Y) 1998–2011 – 2.5L
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Volkswagen Beetle (MK2) 2011–2015 – 2.5L
Why Choose IE?
IE is the only manufacturer to design a 2.5L valve spring and retainer kit based on the real-world needs of the unique 5-cylinder valvetrain. Others simply select stiffer springs that “fit,” risking over-stressing the valvetrain or using poor materials. IE’s springs are made with premium wire, processed for longevity, and perfectly paired with lightweight titanium retainers for long-lasting performance and peace of mind.
