The Forge Motorsport FMDV7 High Flow Valve Kit represents a premium evolution in pressure-management technology for the 2.5 TFSI engine platform. Specifically developed for vehicles that have undergone significant software and hardware modifications or for owners intending to tune their Audi TTRS 8S or RS3 8V/8Y chassis in excess of 450 horsepower. On heavily modified cars, the factory electronic diverter valve frequently fails to vent high boost pressures rapidly enough, triggering compressor surge or intermittent pressure drops during gear changes. This heavy-duty dual-piston vacuum-operated mechanical valve circumvents the small factory porting restrictions, implementing a large external dump mechanism that safely protects your turbo charger and sustains razor-sharp throttle responsiveness.

Engineered to Handle Extreme Boost Pressures

Unlike standard internal options that suffer from small bore passages within the turbo elbow, the FMDV7 completely bypasses standard physical bounds. This kit delivers a robust electronic interface that works harmoniously with the factory engine management unit while venting pressure via standard mechanical vacuum lines, ensuring zero fault codes or dashboard warnings.

Key Features & Benefits

• Developed For High Horsepower: Built specifically to eliminate pressure bleed and compressor stall on setups pushed past 450BHP with stock or hybrid turbochargers.
• Vacuum Twin-Piston Technology: Heavy duty twin-piston design vents large atmospheric volumes rapidly without causing running or idle irregularities.
• Zero Engine Check Lights (EML): Fully integrates with VAG electronic sensor layouts via a bespoke plug-and-play harness to preserve clear system operation.
• Viton Heat-Stabilised Seals: Internals utilize high-performance Viton O-rings lubricated with premium Mobil1 high-temperature grease for extended reliability.
• Premium UK Manufacture: Every internal component and exterior billet section is completely machined and assembled in Great Britain to absolute tolerance specs.

Component Finish & Option Details

This premium system is engineered to deliver professional structural longevity. The external main valve bodies are provided in a sleek, hard-anodized protective finish. While internal springs are tailored for robust setups, the kit features a default heavy loading capability that functions seamlessly across all aggressive performance remaps. Content structures remain fully generic to accommodate universal five-cylinder configurations.

Additional Enhancements & Recommended Addons

Maintain your mechanical valve assembly at peak performance by considering these original factory addon parts:

Forge Motorsport Valve Service Kit - Part Number: FMDVSK

Forge Performance Front Mount Intercooler - Part Number: FMINT33

To maximize total structural performance, combine this system with the Uprated Five Cylinder Boost Hose Pathway for completely leak-free air routing.

Vehicle Compatibility & Fitment Details

This kit replaces the weaker internal electronic actuator assembly, using an advanced solenoid command block to trigger the high capacity mechanical piston ring.

Compatible Vehicles

Installation & Fitting Resource Guide