Forge Atmospheric Dump Valve Kit - Atmospheric Valve - Blue Silicone Hose

A Forge Motorsport Blow-Off/Dump Valve is designed to be an upgrade to the factory turbo setup. Capable of dealing with higher boost pressures and is more reliably designed, making it ideal for high-performance tuned or re-mapped engines. Silicone hose replaces the weaker plastic OEM boost pipe that can deteriorate over time.CNC machined twin-piston valve design helps the turbocharger maintain rotational speed ready for accelerating while reducing the strain on the turbo impeller, prolonging turbo life.Reduces the risk of premature turbo failure on re-mapped engines and modified vehicles.Awesome atmospheric blow-off noiseIncludes all necessary fittings and instructions for a simple installation.includes a boost pipe adaptor for the option of fitting an external boost gauge with a simple t-piece.When you come off the throttle on a turbocharged car the built-up charge of pressurised air has to go somewhere. If it can't, or if the air isn't released quickly enough then the turbo will slow down or even stall leading to a delay getting back on boost when you get back on the throttle.This is where a dump valve comes in. It releases the built-up pressure. Most cars have a dump valve of some sort fitted from the factory. This will have been tuned for the factory tune and boost levels though. On many cars, a soft flexible diaphragm is part of the valve and these wear out. Once the valve is leaking it can cause problems with how the engine functions.Forge Motorsport offer a wide range of uprated Dump Valves / Blow Off Valves. These are designed to handle additional boost. Each valve is designed to do a very thorough job of releasing pressure, getting your turbo back on boost fast.For some vehicles, Forge offers a choice of recirculating dump valves and atmospheric dump valves. A recirculating valve is what most cars come fitted with from the factory. It discretely recirculates excess air back into the inlet. While there will be no extra noise, the valve will be compatible with increased boost pressure.An atmospheric valve, on the other hand, vents the built-up pressure to the atmosphere, giving that distinctive whoosh sound. Many modern engines have problems when you switch from recirculating to venting to the atmosphere. Forge has, for selected vehicles, engineered a complete solution to try and get around this. This means you can enjoy the sporty blow-off valve noise on a wider range of cars than ever. For many of us, that noise is all part of the fun of a turbocharged car!Please carefully check the title to see what type of valve is selected. A recirculating valve will not make the distinctive "blow-off" valve noise.On vehicles where the valve is connected to the ECU (increasingly common on many modern engines), Forge are supplying a complete kit with relevant wiring and plugs.These are generally supplied with full instructions.