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Pro Circuit Nature Friendly S/A Silencer KTM 65SX 2004-2008

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This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

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This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

Pro Circuit Nature Friendly Spark Arrestor Silencer KTM 65SX

The Pro Circuit Nature Friendly Silencer is a quiet, spark-arrested muffler that was designed for riders that frequent noise sensitive areas.

Constructed of an internal metal baffle with specially engineered chambers and sound absorbing materials, the Pro Circuit Nature Friendly Silencer is easily serviceable thanks to the hex head screws that secure the inlet tube to the aluminum body.

If you have been searching for a US National Forest approved silencer for your two-stroke machine, the Pro Circuit Nature Friendly Exhaust is sure to fit the bill.


  • Unrestricted spark arrested power
  • Meets US Forest Service standards
  • Clog-free Krizzman bullet design
  • Longer canister keeps noise levels to a minimum
  • Noise level measured at or near 96dB on most models
  • Internal metal baffle, chambers, and sound absorbing materials
  • Aluminum canister
  • Stainless steel inlet tube
  • FIM approved 304 stainless steel end-cap
  • Double-walled mounting bracket
  • E-glass pillow packing
  • Can be used with stock or Pro Circuit head pipe
  • 100% Made in the USA
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This product is vehicle specific. Click here to select your bike to ensure fitment.

This Product Fits:

65 SX 2004, 2005, 2006, 2007, 2008

This item is also available for 37 other models:

CR125R 1993-1997
CR125R 1998-1999
CR125R 2000-2001
CR250R 1992-1996
CR250R 1997-1998
CR250R 2000-2001
105 SX 2006-2008
125 SX 1998-2003
125 SX 2004-2010
200 EXC 1998-2006
200 SX 2003-2004
250 EXC 1996-1997
250 SX 1996-1997
300 EXC 1996-1997
300 MXC 1996-1997
85 SX (17/14) 2004-2008
85 SX (19/16) 2004-2008
KDX200 1989-1994
KX125 1995-1998
KX125 1999-2002
KX250 1995-1998
KX250 1999-2002
RM125 1996-2000
RM125 2001
RM250 1993-1995
RM250 1996-1998
RM250 1999-2000
RM250 2001
WR250 1994-1997
YZ125 1998
YZ125 1999
YZ125 2000-2001
YZ250 1993-1995
YZ250 1997
YZ250 1999
YZ250 2000-2001
YZ250 2002
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Stainless Steel/Aluminum/Stainless Steel Item # 1019096 Store SKU Manufacturer Product # ST04065-SA Availability Out of Stock