The Valve Spring System by APR is an efficient upgrade that provides better valve control. It also eliminates potential problems and issues caused by malfunctioning valves. The design of the APR valve system, however, requires a valve spring and retainer kit. This kit should be light enough to prevent damage to the OEM valves while being sturdy enough to maintain decent valve control. Lucky for you, APR also provides the perfect solution - APR Valve Spring and Retainer Kits!

The APR Valve Spring and Retainer Kits are the best solution for common issues such as Valve Float. The valve spring features a beehive design that lends it a noticeable reduction in its weight. Meanwhile, the ovate wire design ensures the right balance between stress distribution to improve control at higher RPM bands.

The valve spring retainers are lighter than the stock units - a feature that further contributes to its success. This construction delivers unbeatable valve control without stiffening, a phenomenon that could break valves in half.

APR started in 1997 and has grown to become the market leader in automotive aftermarket products. APR manufactures products for all the vehicle brands under the Volkswagen group, including Skoda, Audi, Volkswagen, Seat, and Porsche. APR is behind some of the most trusted hardware and software for transmission and engine controllers. APR or Audi Performance and Racing is the name that vehicle owners trust for any software or hardware needs that provide excellent performance with value for money.

APR solutions help you in data-logging, calibration, tuning of intercoolers, data-logging, calibration, control of exhaust systems, intakes, intercoolers, suspensions, etc. The brand also provides the highest levels of services and support to all customers. It is powered by a 24-hour global delivery system with complete automation is spread across 80,00 square feet in Opelika in Alabama. From timely upgrades to software services and customer support- this 24-hour facility provides it all.

Since manufacturing their first ECU Software Upgrade for the Audi A4 1.85, APR has come a long way to help owners of any Volkswagen group vehicle get the best performance and quality. With every APR product or solution, you can be confident of making the best choice for your car and money.