BMC Twin Air Conical Air Filter, Connection 178mm, Length 206mm BigPack Bend: 45 degree Inner diameter MINI Mini N18 Engine Bend: 45 degree Inner diameter 1 (mm): 60 mm Inner diameter 2 (mm): 76 mm Inner diameter 1 (inch): 2 3 8 inch Inner diameter 2 (inch): 3 inch Leg length (see picture): 125 mm Color: Black Wall thickness: 5 mm Temperature range: 40 to +180 degreeC Outer diameter 1: 70 mm Outer diameter 2: 86 mm Reinforcement: 4 layers Material: High quality silicone rubber polyester fabric Inner diameter (mm): 63 mm Inner diameter (inch): 2 1 2 inch Length: Choose in dropdown (Qty = length in meter) Color: Black Wall thickness: 1 mm Temperature range: 70 to +280 degreeC Reinforcement: 2 layers Material: Silicone coated glass fiber fabric and spring steel The filter is pre oiled from factory so it is ready to use out of the box We offer BMC original cleaning and regeneration kit