Description
When peak performance and extreme airflow are non-negotiable, the Forge Motorsport Supersize Valve delivers unmatched capability for highly tuned turbocharged and supercharged engines. Designed for demanding applications that exceed the limits of conventional diverter or blow-off valves, the Supersize Valve is the highest-flowing, largest displacement valve available on the market.
Purpose-built to handle high-boost environments, the Supersize Valve features a massive 50mm (2") internal bore, an aerodynamic CNC-machined piston, and expansive 40mm (1 5/8") inlet and outlet ports to ensure superior flow dynamics. This makes it the ultimate solution for vehicles equipped with large turbo upgrades, aggressive tuning software, or advanced boost modifications that outpace the capabilities of standard valves.
Using the latest in SolidWorks design and flow analysis, Forge engineers have optimized the internal piston geometry for maximum velocity and turbulence reduction, allowing for faster response and smoother operation under extreme load.
To ensure durability under the harshest conditions, the Supersize Valve uses Viton® O-rings, known for their excellent resistance to high temperatures, oil mist, and engine vapors. The valve is CNC-machined from aerospace-grade aluminum and is finished in a clean machined alloy finish, showcasing both performance and precision engineering.
Compatible with both turbocharged and supercharged systems, this valve is designed to replace vacuum-operated valves. It is not compatible with electronic/solenoid-operated OEM valves, as removing those may trigger a check engine light.
Like all Forge Motorsport products, the Supersize Valve is backed by the Forge Lifetime Warranty, and service kits are available to maintain peak performance over the long term.
Key Features:
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Industry-leading 50mm (2") internal bore for maximum flow
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High-flow 40mm (1 5/8") inlet and outlet ports
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CNC-machined aluminum body and piston
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Optimized piston design developed using SolidWorks CAD
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Viton® O-rings for superior resistance to heat and engine vapors
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Ideal for heavily modified or high-boost applications
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Designed for vacuum-operated valve replacement
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Supplied with installation hardware and Forge Motorsport decal
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Lifetime warranty from Forge Motorsport
Important: Not compatible with vehicles using solenoid (electronic) diverter valves unless a bypass or emulator is used.
What’s Included:
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1 x Forge Supersize Valve (FMDVSUPR)
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1 x Forge Motorsport Vinyl Decal
Vehicle Fitment:
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2012–2013 Audi TT RS Quattro (8J) – 2.5L Turbocharged I5
Note: May also be suitable for universal applications requiring high-flow vacuum-operated valves.
