FMF PowerCore 4 Full Exhaust System

Item Number: 327252


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Product Description

FMF Racing

FMF PowerCore 4 Full Exhaust System

  • When designing the PowerCore 4, FMF looked at their top of the line products to deliver race-inspired performance at an economical price
  • Rugged durability at a price that won't break the bank
  • Overall increase in horsepower and torque
  • Durable stainless steel and Aluminum construction
  • Advanced packing material for maximum longevity
  • Champagne color anodized can

Spec Details
Configuration Varies (make selection above)
Country of Origin USA
Header Varies (make selection above)
Header Construction Stainless Steel
Muffler End Cap Stainless Steel
Muffler Sleeve Champagne Anodized Aluminum
Spark Arrestor Varies (make selection above)

Vehicle Fitment

Fitment is guaranteed or your money back plus free return shipping. Don't waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.


  • TRX90EX FourTrax 90 2007-2008
  • TRX90X FourTrax 90 2009, 2013-2014
  • TRX250X FourTrax 250X 1987-1988, 1991
  • TRX300EX FourTrax 300EX 1993-2000, 2004-2007
  • TRX300EX Sportrax 300EX 2001-2003, 2008
  • TRX300X Sportrax 300X 2009


  • KFX50 2008-2009
  • KFX90 2008-2010
  • KSV700A KFX700 V-Force 2004-2009


  • LT-Z50 QuadSport 50 2007-2009


  • YFM80 Raptor 80 2002-2008
  • YFM80G Grizzly 80 2008

Customer Reviews

Questions & Answers

  • Does this include the header?

    By: Guest

    Yes, all FMF Power Core 4 Full Exhaust Systems come with stainless steel headers.

    By: Staff

  • Does it require rejetting

    By: Aaron J.

    While it's not required, we highly recommend that you rejet your machine so as to get the best possible throttle response and engine power output. FMF even makes a jet kit that's perfectly matched to go along with their exhausts in the form of the FMF Power Up Jet Kit. With that, you'll get everything you need and the included instructions do an excellent job of explaining how to tune your bike for maximum benefit.

    By: Staff