Installation instruction: Easy to installed on the exhaust pipe of the original car and away from the heat source. Fix it with a clamp and try to keep the whole pipeline in a vacuum state. Prevent Coolant Leakage: Tight closed cap, Fully Tig Welded and Thread Come with O-ring Gasket， Keep a good closed environment and Prevent coolant leakage. Prevent Rust: The radiator coolant overflow tank is fairly simple device but it can save you a lot of money by preventing rust formation in the cooling system of your car. Keep Operational Temperatures: Radiator coolant overflow tank makes the engine coolant to keep it within the operational temperatures when the engine is running at its optimum performance. Coolant Back Into Radiator: When coolant will start to cool down, it will contract in volume, a vacuum valve in the pressure cap opens allowing the coolant which was flown into the radiator coolant overflow tank back into the radiator. Details and Specifications: Fitment: Universal fitment, fits for most brands of cars, such as BMW, Ford, Chevy, Honda, Toyota, etc. Weight: 800g Packing Size: 8*6.5*4.2inch Capacity: 800 ml Material: Aluminum alloy Tank Color: Black/Blue/Silver Round: 3inch Height: 7.5inch Features and Benefits: Made of 6061 T6 Aluminum Alloy Material for Lightweight and Durability Prevents leaks by helping relive pressure while increasing horsepower Packing includings: 1 × Radiator Overflow Tank 1 × Cooling Hose 1 × Set of Mounting Accessories As the pictures shown NOTE: Please confirm that there is enough space in the car to install the cooling pot.