These will not fit the Forfour, the 800cc diesel Fortwo or the new 999cc Fortwo, including the 999cc Fortwo Brabus. The valve has been specially designed for this vehicle and uses twin springs and dual pistons to prevent the valve from leaking air into the intake system at idle with a 12mm inlet to ensure a faster air velocity so that it sounds fantastic.1 x 5mm T Piece. 1 x 500mm of 4mm Vacuum Tube. 1 x 35mm Hose Clamp. 2 x 55mm Hose Clamp. 1 x Silicon Boost Hose, with Valve Take Off. PLEASE USE ALL OUR LISTING INFORMATION AND IF NECESSARY DO FURTHER CHECKS TO MAKE SURE THIS PART IS CORRECT FOR YOUR CAR. The item "Forge Motorsport Smart Car Piston Dump Valve and Fitting Kit FMSCDVK" is in sale since Tuesday, December 11, 2018. This item is in the category "Vehicle Parts & Accessories\Car Tuning & Styling\Engine, Tuning & Chips\Other Engine Tuning". The seller is "templetuning" and is located in Bristol. This item can be shipped to all countries in Europe, Australia, United States, Canada, Brazil, Japan, New Zealand, China, Israel, Hong Kong, Indonesia, Malaysia, Mexico, Singapore, South Korea, Taiwan, Thailand, Chile.