Carbon Fibre 4" (101mm) Bellmouth AF64-4971 Product:6" (152.4mm) O.D. Suit Turbo or Intake Pipe 2017 BMW 325d 2

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Carbon Fibre 4" (101mm) Bellmouth AF64-4971 Product:6" (152.4mm) O.D. Suit Turbo or Intake Pipe 2017 BMW 325d 2Carbon Fibre 4" (101mm) Bellmouth6" (152. 4mm) O. D. Suit Turbo or Intake Pipe AF64 4971 64 4971 Aeroflow Performance Bellmouth style velocity stacks are ideal for achieving maximum air velocity. Manufactured out of carbon fibre, these lightweight bellmouth velocity stacks increase the volume of air at your compressor inlet. 101mm (4") bellmouth has a 152. 4 mm (6") O. D. so you can run an Aeroflow pod filter.