DOMA Expansion Chamber for KTM EXC, SX, SXF, XC, XCF, XCW 250, 400, 450, 525 and HUSABERG FC, FE 450, 501, 550 2002-2008

DOMA offers this expansion chamber for KTM EXC, SX, SXF, XC, XCF, XCW 250, 400, 450, 525 and HUSABERG FC, FE 450, 501, 550 2002-2008. On a 2-stroke, the pressure wave reflected by the pipe helps fill the cylinder: the shape of the cones decides whether the engine pulls low down, in the midrange or at the top end.

Why change the expansion chamber?

The benefits:

• Replace a dented pipe: even a small dent changes the power curve.
• Choose an engine character to suit your riding.
• A clean new pipe, with no leaks at the welds or joints.

When should you replace the expansion chamber?

Dented or cracked pipe, broken mounting brackets or mixture leaking at the joints: replace it, the loss of power is often obvious.

Specifications and fitting tips

• Manufacturer part number: 100117

Cross-Mania tip: Fit new gaskets and springs and check that it touches neither the frame nor the radiator.

Spare parts and items to plan

• Exhaust gasket : ATHENA · CENTAURO
• Spark plug : NGK 6664 · NGK 3521

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
HUSABERG FC 450 2005
HUSABERG FC 450 2004
HUSABERG FC 550 2005
HUSABERG FC 550 2004
HUSABERG FE 450 2008
HUSABERG FE 450 2007
HUSABERG FE 450 2006
HUSABERG FE 450 2005
HUSABERG FE 450 2004
HUSABERG FE 501 2004
HUSABERG FE 550 2008
HUSABERG FE 550 2007
HUSABERG FE 550 2006
HUSABERG FE 550 2005
HUSABERG FE 550 2004
KTM EXC 250 2005
KTM EXC 250 2004
KTM EXC 250 2003
KTM EXC 250 2002
KTM EXC 400 2006
KTM EXC 400 2005
KTM EXC 400 2004
KTM EXC 450 2007
KTM EXC 525 2007
KTM EXC 525 2006
KTM EXC 525 2005
KTM EXC 525 2004
KTM EXC 525 2003
KTM SX 525 2006
KTM SX 525 2005
KTM SX 525 2004
KTM SX 525 2003
KTM SXF 450 2006
KTM SXF 450 2005
KTM SXF 450 2004
KTM SXF 450 2003
KTM XC 525 2007
KTM XCF 450 2007
KTM XCF 450 2006
KTM XCW 400 2007
KTM XCW 450 2007
KTM XCW 525 2007