Maptun Performance 2.5" Cat Back Dual Pipe Exhaust 9 5 04 05 Aero & 06 09 All x70 Bend: 60 degree Inner diameter Straight reducers Bend: 60 degree Inner diameter 1 (mm): 76 mm Inner diameter 2 (mm): 102 mm Inner diameter 1 (inch): 3 inch Inner diameter 2 (inch): 4 inch Leg length (see picture): 152 mm Color: Blue Wall thickness: 6 mm Temperature range: 40 to +180 degreeC Outer diameter 1: 88 mm Outer diameter 2: 114 mm Reinforcement: 5 layers Material: High quality silicone rubber polyester fabric Inner diameter 1 (mm): 76 mm Inner diameter 2 (mm): 32 mm Inner diameter 1 (inch): 3 inch Inner diameter 2 (inch): 1 1 4 inch Length: 100 mm Color: Blue Wall thickness: 4 mm Temperature range: 40 to +180 degreeC Outer diameter 1: 86 mm Outer diameter 2: 42 mm Reinforcement: 4 layers Material: High quality silicone rubber polyester fabric Part# 04 14011 High Quality mix of Stainless & Chromium Steel