Gravity Performance Boost Pipes are performance focused to provide increased airflow and more efficient air cooling and are all extensively developed to reduce weight whilst accommodating higher boost pressures. ---Silicone rubber construction for increased durability and ease of maintenance / installation ---Designed to withstand temperature ranges from -50°C to 220°C. ---5mm wall thickness reinforced with 4 polyester / nomex mesh layers to withstand higher pressures than the original rubber hose. ---Direct replacement for the OEM hoses ---A great looking addition to the engine bay Fitment ---Smart ForFour Brabus 1.5 Turbo 04-12 Models ---Mitsubishi Colt CZT 1.5 Turbo 04-12 Models.