HKS 33006-BF003 Front Pipe USA GRF Subaru Impreza EJ25 (single scroll)(see notes)

■Features

• It was developed based on long time know-how of turbo technology.
• The connection portion with turbine is made by lost wax casting that enables flat surface between flange and pipe.
• Improved exhaust efficiency without catalytic converter. (Off-road use only)
• For improvement of exhaust efficiency, diameter of the pipe is Φ75.
  If it is used with the specified muffler (31008-BF001)(*), whole exhaust system will be Φ75.
  * Front Pipe and Muffler system set (31008-BF002) is available.
  (This item can be used with other exhaust systems. A Flange Adaptor is included to fit to Φ65 spherical flange.)