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Motion Raceworks


S400 Downpipe Aluminum Flange and Vband 5"

Racing Use Only, Not Legal for Road Use

11 items left

S400 Downpipe Aluminum Flange and Vband 5"

Motion Raceworks always seeks to maximize functionality and durability while making parts in the USA!  This flange accomplishes all of the above 

Featuring a Marmon flange for T5/T6 style Borg Warner S400 series turbos, this flange transitions to a 5" size for easy downpipe building with a CNC quality flange.  


  • Marmon Flange
  • CNC from Solid 6061 Aluminum
  • Adapts to 4" downpipe size tubing
  • Features Easy weld step for welding 
  • Quick Release Custom Made in the USA V-band clamp

For 5" Vband assembly version click the link below: Part Number 21-11006

For replacement Vband Clamp click the link below: Part Number 21-11005-V