The product adopts airbox, which could store a plenty of fresh air and avoid blocked by insufficient air intake while oil return, extremely improving the smoothness of driving. FUNCTION Cold Air intake system relocates the filter outside of the engine compartment to deliver the coolest air inlet temperatures possible. The reason for using Carbon Fiber over other available materials other than that it looks stunning! is due to the fact that carbon fiber has a low thermal conductivity allowing insulation from the engine heat to the aspirated air. Carbon fiber shell design with beautiful appearance and lightweight, good noise reduction property and heat insulation. Keep heat to minimum and maximize the air flow. Material: Carbon Fiber, Aluminum, Stainless Steel, PlasticInlet / Outlet: 76mm / 3 inchFlexible Hose Length: 1M(when extended)Fitment: Fits for most cars which air inlet hoses with diameters between 63mm and 76mm Notes: 1. This universal kit do not including intake turbine. 2. Please note on some cars you may need any additional pipe which isn't included. 3. Theoretically, it's universal kit fit for most car, but actually, it is depend on the specific size, please according the size pictures to measure the dimensions. And please allow 1-2cm (1cm = 0.39inch) differences due to manual measurement. 4. Instruction is not included, professional installation is recommended. Car Air Intake Filter Adopt Airbox Design Why Choose Carbon Fiber? Detail Information Carbon fiber shell with reusable filter cartridge Features