Hurricane air filter DryFlow 114mm (4.5") Twin filter cone performance air filter for motorsport and racing where flow and power are prioritized. Most flow per cm2 filter area in the class! Model : Twin filtercone air filter with 8 layer without oil. Connection : 114mm (4.5") Total length : 280mm Power range : Around 1200hp but completely dependent on other engine components. This filter provides the most flow / power per cm2 of filter area in its class. Construction : Filter material that is built up in layers with a steel skeleton that gives the air filter stability to withstand surge and pressure shocks in the best possible way. Mounting : Mounted so fresh air easily reaches the filter surface. Mounted protected from the engine's heat radiation as the intake temperature affect engine performance ina negative way. Also keep the filter protected from water, dirt and heat radiation for the best possible life span. Cleaning : 1. Fill a bucket with water and filter cleaner / soap 2. Dip