Garrett Intercooler Core Air Air (457 x 203 x 89 mm) 425 HP BigPack 17112283468 E36 17112283468 Bend: 60 degree Inner diameter 1 (mm): 60 mm Inner diameter 2 (mm): 70 mm Inner diameter 1 (inch): 2 3 8 inch Inner diameter 2 (inch): 2 3 4 inch Leg length (see picture): 125 mm Color: Blue Wall thickness: 5 mm Temperature range: 40 to +180 degreeC Outer diameter 1: 70 mm Outer diameter 2: 80 mm Reinforcement: 4 layers Material: High quality silicone rubber polyester fabric this will always be the case for all intercooler designs but a good design gives a lower pressure drop Garrett has over 75 years of charge air cooler experience and a top position in intercooler design and function making it the given choice for some of the premier names in the performance car industry