Upgrade your factory diverter valve with the CTS Turbo Diverter Valve Kit for the Volkswagen MK7 GTI, Golf R and Audi 8V S3. The CTS DV was designed to improve boost reliability, throttle response, and long-term durability.
The factory electronic diverter valve can become a weak point on tuned or higher-boost applications due to diaphragm wear and plastic housing failure. This CTS Turbo DV replaces the factory valve with a billet piston-style design engineered for improved sealing, faster response, and greater reliability under increased boost pressure.
Quick Fitment Overview
Compatible with Volkswagen MK7/MK7.5 GTI, Golf R and Audi 8V/8V.5 S3
Billet piston-style diverter valve upgrade
Improves boost response and long-term reliability
Direct-fit installation using factory electronic controls
Product Description
The CTS Turbo Diverter Valve Kit for the Volkswagen MK7 GTI, Golf R and Audi 8V S3 is engineered to provide more consistent boost control and improved durability compared to the factory diverter valve setup. Designed for both stock and tuned MQB vehicles, this billet aluminum valve helps maintain boost pressure more effectively during aggressive driving and high-load conditions.
Unlike the factory diaphragm-style design, the piston-style construction is built to withstand higher boost levels while delivering quicker valve response and improved reliability. This makes it an excellent upgrade for drivers running ECU tuning, upgraded turbochargers, or increased boost pressure.
Key Features and Benefits
CNC-machined billet aluminum construction
Piston-style diverter valve design for improved durability
Maintains factory electronic operation and integration
Improves boost holding capability under increased pressure
Faster valve response compared to factory diaphragm setup
Designed for stock and tuned EA888 Gen 3 applications
Direct-fit installation using factory mounting locations
Improves throttle response and boost consistency
Vehicle Compatibility
Audi 8V/8V.5 S3 (2015–2020)
Volkswagen MK7/MK7.5 GTI (2015–2021)
Volkswagen MK7/MK7.5 Golf R (2015–2019)
Installation and Notes
Direct bolt-on installation
Professional installation recommended
No tuning required for installation
Inspect boost hoses and turbo connections during installation
Ensure proper electrical connection to factory harness
Recommended Upgrades
High-flow air intake system
Turbo inlet pipe
Performance intercooler
Turbo muffler delete
Frequently Asked Questions
Q: What does a diverter valve upgrade improve? A: It improves boost reliability, valve response, and long-term durability especially on tuned or higher-boost vehicles.
Q: Does this require tuning? A: No. This diverter valve kit works with the factory electronic controls and does not require tuning.
Q: Is this better than the factory diaphragm valve? A: Yes. The billet piston-style design is more durable and better suited for higher boost applications.
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