Dump / Blow Off Valve complete with Fitting Kit. Dual-Piston Atmospheric Valves and Valve Fitting Kits. All Forge Motorsport Dual-Piston Atmospheric Valves have been designed and built with the intent of venting 100% of the residual charge air remaining in your forced induction system to the atmosphere at throttle lift. While we have incorporated many elements into the design of the Dual-Piston valves to aid in their compatibility with mass air-flow sensor equipped vehicles, we cannot always guarantee that each individual?S application will be compatible with a valve that vents the charge air into the atmosphere. Forge Motorsport nor any of it? S Authorised Distributors can assume any responsibility for any adverse effects resulting from the installation of this valve onto a vehicle whose engine-management-system, whether factory or aftermarket, is not capable of compensating for the loss of metered air through a vent-to-atmosphere valve such as this. In The Box: -1 x FMFK050 Valve -1 x Silicon Hose with Valve Take Off -1 x MIE Blanking Plate -8 x Cable Ties -1 x 2000mm of 4mm Vacuum Tube -1 x 35mm Hose Clamp -2 x 70mm Hose Clamp -1 x 4mm T Piece -1 x Forge Sticker If you wish to tune this product to fit the needs of your engine, please see the spring tuning kits below. This item is in the category "Vehicle Parts & Accessories\Car Tuning & Styling\Air Intake & Induction\Dump, Bypass & Blow-Off Valves". The seller is "wg_motorparts" and is located in this country: GB. This item can be shipped worldwide.