After hundreds of dyno pulls and years of development work, our staff of engineers is proud to bring you the best spring and retainer kit available for your VW / Audi. Development of these kits starts at the ground up- built on a foundation of in depth knowledge about these engines that comes from developing our own cam profiles from scratch. Since we develop the camshafts, our Engineers know exactly what Spring characteristics will work the best in these particular engines. This is a huge contrast to most spring kits- which are developed by taking an OE spring and just making it a bit stiffer. Armed with this in depth knowledge, we have developed a solution which allows operation with our cam profiles to over 9000 rpms safely.  Damaging harmonics and coil bind are skillfully avoided over the entire operating range. Not one, but two software packages are used to check stress levels in both the springs and the matching retainers at various lifts. Each spring and retainer is individually engineered for that specific application. Unlike big box valvetrain companies, we do not cram springs into other engines simply because we have them on the shelf.

This design sophistication is matched only by the level of quality built into these parts. The springs start off all the way in Kobe, Japan- the place where the cleanest, highest strength spring wire in the world is made. Many other wires have been tested, but this is the only wire that will work when  only the best will do. The springs are CNC wound, then shot peened in an exclusive multi step peening process that generates absolute maximum fatigue life from the wire. The matching retainers are FEA optimized for low weight and a long life. They are CNC turned from Mil Spec, USA made Titanium right here in our Salt Lake City, Utah location.

Treat your engine to the only spring kit designed from the ground up for your engine, by Engineers who actually develop and dyno test camshaft profiles for this specific application. Get the BEST for your engine right now!

Integrated Engineering is proud to bring you this very high quality valve spring kit for 20V 1.8T engines. This kit features spring rates which are optimized to match your vehicle specifications and provide proper valve control even under high revving applications.

Increasing your engines power output often comes with modifications that require more RPMs to get the most out of it, such as larger turbochargers, tuned intake manifolds and bigger cams. Upgrading those components without changing out the valve springs can leave you with a short power band or cause valve float and other significant damage.

Cheap valve spring kits are often designed by simply finding a spring that is stiffer and will fit. Those are also not usually a good compromise because many times they are the wrong stiffness, and often poorly constructed. A broken valve spring can cause total engine failure and destroy everything that you have put hard work and money into. Our kits are designed hand in hand with our camshafts. They are the only spring and retainer kits on the market designed by someone with a working knowledge of the camshafts in these engines, and what the spring requirements actually are.

Manufactured out of the best spring wire in the world IE valve springs use a patented multi stage shot peening process that further reduces failure rates. Our titanium retainers are machined with an excellent surface finish and tight tolerance control for a long lifespan. Each application is thoroughly tested to perform on these engines right here in our test facility in Salt Lake City, Utah. Our spring and retainer kits are the best matched, most tested parts on the market. Purchasing a set will ensure that your engine runs at maximum performance and reliability.

Kit includes:
12 Precision wound intake valve springs 
8 Precision wound dual exhaust valve springs
12 Tianium intake retainers
8 Titanium exhaust retainers

Features:
Engineered, designed, and manufactured in USA
Nano-peened for long life
Retainers machined to exacting tolerances