Demon Flow Series 3.0 Customisable Rectangular Dumper Muffler.

With Series 3.0 Rectangular Demon Flow Mufflers, you can customise from our available:

  • Body Width and Height
  • Body Length
  • Packing Type
  • Inlet & Outlet Configurations


This muffler is a 6" Height x 10" Wide End Cap, with your choice of Length and Tip.
Like all DemonFlow's the S3 is Precision TIG welded 1.5mm thick 304 grade stainless steel body with 2mm End Caps. They retain the highest possible Heat range we have seen in any muffler and are guaranteed not to blow out. With all the S3 Square Units we also polish the item! If you want coloured welds or the "As Welded" look please specify in the notes section on when ordering. Contact us for details about custom mods. Were more then happy to try meet your requirements.
Sizes for known cars:
  • BA-FGX XR6T Rear Box: 6 x 10 x 13.5 or 6 x 10 x 18.
  • BA-FGX XR6T Mid Box: 6 x 10 x 13.5.
  • Evo 7-9 Rear Box: 6 x 10 x 13.5.
  • VE-VF Commodore Rear Box (One each side): 6 x 10 x 13.5.

NOTE: this is a custom order and requires sometimes weeks before it can be commenced. Please advise us if you require a fast track service at an additional fee.

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