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FMF PowerCore 4 Slip-On Exhaust KTM 450 / 525 / SX / XC / XC-W / EXC / MXC
  • FMF PowerCore 4 Slip-On Exhaust KTM 450 / 525 / SX / XC / XC-W / EXC / MXC - Stainless Steel/Aluminum/Stainless Steel

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Video Reviews (2)

FMF PowerCore 4 Slip-On Exhaust KTM 450 / 525 / SX / XC / XC-W / EXC / MXC Videos

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

FMF PowerCore 4 Slip-On Exhaust KTM 450 / 525 / SX / XC / XC-W / EXC / MXC

When designing the PowerCore 4 Exhaust, FMF took a hard look at their top of the line mufflers to produce race-inspired performance at a more economical price. The end result is a quality muffler that delivers improved torque, increased horsepower and rugged durability all at a price that won't break the bank.


  • Increase in power and torque through entire RPM range
  • Durable stainless steel and aluminum construction
  • High quality internal packing material for maximum longevity
  • Removable spark arrestor included
  • Can be used with FMF or Stock OEM Header
  • Weight: 4.6 lbs
  • 100% made in the USA
5 / 5
Bang For The Buck
5 / 5
This Product Fits:
450 EXC 2004, 2005, 2006
450 MXC 2004, 2005
450 SX 2004, 2005, 2006
450 XC 2006, 2007
450 XC-W 2007
525 EXC 2004, 2005, 2006
525 MXC 2004, 2005
525 SX 2004, 2005, 2006
525 XC 2006, 2007
525 XC-W 2007
Product Style RevZilla Item # Manufacturer Product # Availability
Stainless Steel/Aluminum/Stainless Steel 894461 045135 Out of Stock


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Have a functionality, fit, or otherwise product-specific question about the FMF PowerCore 4 Slip-On Exhaust KTM 450 / 525 / SX / XC / XC-W / EXC / MXC? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

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Browse 33 questions Browse 33 questions and 15 answers
Will this fit a 2003 450sx?
A shopper on Jul 31, 2016
Will this fit a 2003 ktm450 exc?
A shopper on Jun 13, 2016