Centre/Centre, Semi Baffled Centre/Centre, Semi Baffled Centre/Centre, Semi Baffled
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Centre/Centre, Semi Baffled

Semi-baffled mufflers offer a medium level of silencing and are suitable for use with most turbo-diesel engines. They have internal baffle plates and are fitted with sound absorption packing.

  • The most popular and versatile internal configuration, suitable for a wide range of vehicles and engines
  • Also referred to as Easy-Flow
  • A unique design used in most of the Flowtech Silencer range
  • Combines the flow advantage of a straight through design with the sound absorption of a baffle
  • Centre/Centre inlet/outlet configuration
  • Supplied with slip joints as standard (use an AccuSeal, U-Bolt, Torctite EasySeal or lap/stepped band clamp)
  • Some vehicle-specific applications (e.g. Isuzu, Hino) are supplied with flanged ends.

Flowtech heavy duty mufflers are made in Australia, but economy versions are often available.

6" (152mm) OD Barrel

Stock Code Inlet/Outlet Size (ID)Barrel Length
MSB624-200 2" (51mm) 24" (610mm)

7" (178mm) OD Barrel

Stock Code Inlet/Outlet Size (ID)Barrel Length
MSB730-250 2½” (63mm) 30" (762mm)
MSB730-300 3” (76mm) 30" (762mm)
MSB740-300 3” (76mm) 40" (1016mm)
MSB740-400 4" (102mm) 40" (1016mm)

8" (203mm) OD Barrel

Stock Code Inlet/Outlet Size (ID)Barrel Length
MSB830-250 2½” (63mm) 30" (762mm)
MSB830-300 3” (76mm) 30" (762mm)
MSB836-300 3” (76mm) 36" (915mm)
MSB840-300 3” (76mm) 40" (1016mm)
MSB840-304 3” (76mm) In / 4” (102mm) Out 40" (1016mm)
MSB830-350 3½” (89mm) 30" (762mm)
MSB836-350 3½” (89mm) 36" (915mm)
MSB838-350 3½” (89mm) 38" (965mm)
MSB840-350 3½” (89mm) 40" (1016mm)
MSB830-400 4” (102mm) 30" (762mm)
MSB836-400 4” (102mm) 36" (915mm)
MSB840-400 4” (102mm) 40" (1016mm)
MSB834-500 5” (127mm) 34" (864mm)
MSB844-500 5” (127mm) 44" (1120mm)

8½" (216mm) OD Barrel

Stock Code Inlet/Outlet Size (ID)Barrel Length
MSB8534-400 4” (102mm) 34" (864mm)

9" (230mm) OD Barrel

Stock Code Inlet/Outlet Size (ID)Barrel Length
MSB920-400 4” (102mm) 20" (508mm)
MSB940-400 4” (102mm) 40" (1016mm)
MSB944-400 4” (102mm) 44" (1120mm)
MSB939-485 4” (102mm) ID In / 85mm OD Out 39" (990mm)
MSB940-405 4” (102mm) In / 5” (127mm) Out 40" (1016mm)
MSB944-405 4” (102mm) In / 5” (127mm) Out 44" (1120mm)
MSB924-500 5” (127mm) 24" (610mm)
MSB933-500 5” (127mm) 33" (838mm)
MSB944-500 5” (127mm) 44" (1120mm)
MSB944-506 5” (127mm) In / 6” (152mm) Out 44" (1120mm)
MSB926-300F 3" 4 Bolt Flange In / 3” (76mm) ID Out 26" (660mm)

10" (254mm) OD Barrel

Stock Code Inlet/Outlet Size (ID)Barrel Length
MSB1024-400 4” (102mm) 24" (610mm)
MSB1044-400 4” (102mm) 44" (1120mm)
MSB1024-500 5” (127mm) 24" (610mm)
MSB1030-500 5” (127mm) 30" (762mm)
MSB1036-500 5” (127mm) 36" (915mm)
MSB1044-500 5” (127mm) 44" (1120mm)
MSB1050-500 5” (127mm) 50" (1270mm)
MSB1055-500 5” (127mm) 55" (1397mm)
MSB1044-506 5” (127mm) In / 6” (152mm) Out 44" (1120mm)
MSB1039-335F 3" 4 Bolt Flange In / 3½’ (89mm) ID Out 39" (990mm)
MSB1128-300 3” (76mm) 28" (711mm)
MSB1128-350 3½” (89mm) 28" (711mm)
MSB1144-600 6” (152mm) 44" (1120mm)

11” (280mm) X 8” (203mm) Oval Barrel

Stock Code Inlet/Outlet Size (ID)Barrel Length
MSB11831-2753H 2¾” (70mm) ID In / 3" 3 Bolt Flange Out 31" (787mm)