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Air and Fuel› Superchargers, Turbochargers and Components

Forge

VAG 1.8T Blow-Off / Recirculation Valve

Name: VAG 1.8T Blow-Off / Recirculation Valve
Brand: Forge
SKU: FMDVSPLTR

$278.55

SKU: FMDVSPLTR

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Moderate — 2–4 hours

Overview

It offers the sound of a blow-off valve while maintaining recirculation for engine management compatibility. The valve features a brass piston, new sealing technology, and a variable spring preload with a ratchet-type adjuster for precise tuning.

It utilizes a unique single, conical, progressive rate spring that allows for consistent boost pressure retention and unrestricted piston travel. This design differs from other manufacturers' valves that use cylindrical springs, which can restrict piston travel and flow volume. The port size of this valve is 25mm.

Show original supplier description

The Forge Splitter (FMDVSPLTR) is a versatile valve engineered for VAG 1.8T turbocharged engines, providing a simultaneous combination of blow-off and recirculation valve operation. This hybrid functionality delivers the audible blow-off valve sound that enthusiasts desire, while crucially retaining the necessary recirculation for the engine management system to function correctly. For situations requiring a more discreet operation, the valve can be converted to a recirculation-only mode. Constructed with a brass piston and featuring advanced sealing technology, this valve incorporates a unique single, conical, progressive rate spring. This design allows for precise adjustment of spring preload using a ratchet-type top adjuster, ensuring positive and accurate tuning to match your engine's specific boost pressures. Unlike valves with cylindrical springs that can restrict piston travel and flow volume, the Splitter's design ensures unrestricted movement and flow regardless of preload adjustments. Installation requires the valve to be fitted in the opposite orientation to the original Bosch valve. The side pipe should connect to the turbo intake hose, and the base pipe should connect to the hose leading to the boost side of the turbo. The valve has a 25mm port size.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

Brand	Forge
Part Number	FMDVSPLTR
Category	Air and Fuel

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