Forge Forge Atmospheric Blow Off Valve - Black Finish - Black Silicone Hoses

This atmospheric dump valve is an upgrade designed to introduce reliable boost control to turbocharged setups not originally equipped with a factory-fitted diverter valve. It uses a twin-piston blow-off valve system and a complete installation kit to manage excess boost pressure and maintain stable airflow during throttle transitions.Discover the key features of this valve and how they support smoother engine response:Twin-piston valve mechanism: This design uses dual CNC-machined pistons housed in a billet aluminium body, allowing precise and rapid pressure release under throttle lift-off which helps minimise compressor surge and reduce lag after throttle lift-off.Uprated spring kit: Supplied with two uprated spring options matched to standard and stage 1 boost levels, allowing you to configure valve response for consistent performance under varying load conditions.Direct-fit silicone hose kit: Includes a custom silicone throttle hose, billet coupler, vacuum fittings, clamps, and cable ties, providing a straightforward and secure installation without the need for additional components.Fully serviceable assembly: The valve is designed for easy disassembly, enabling cleaning, lubrication, and spring changes which helps extend service life and maintain consistent valve performance over time.Lifetime product guarantee: Covered by Forge's lifetime warranty against manufacturing defects when registered after purchase, offering long-term assurance in both daily and demanding use.This valve offers a practical way to add controlled boost venting to a platform not originally equipped with a diverter system. With its serviceable construction and matched spring kit, it provides consistent pressure relief and helps reduce mechanical strain on the turbo. It's a smart addition to any setup looking to improve throttle response and protect against compressor surge.