FMF Factory 4.1 PowerBomb Exhaust System

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Rating 4.90 of 5 (4 Reviews)

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Product Information

FMF Factory 4.1 PowerBomb Full Exhaust System

Complete system with titanium PowerBomb header and midpipe. Race proven reliability testing, high temp multi-layer packing material and exclusive repack maintenance indicator.

Features:
  • The lightest full system available
  • Natural or Anodized Blue Titanium Silencer
  • Superior power and performance - horsepower improved throughout RPM range
  • Features exclusive proprietary Chamber Core and Power Bomb technology
  • Factory Forward Engineering centralizes mass, improves handling
  • Titanium muffler with titanium endcap, midpipe and PowerBomb header
  • Made from premium quality American materials
  • Performance tuning inserts and spark arrestor module available
  • Meets AMA sound requirements on most models; inserts available for others


Click Here for Additional Exhaust Information
  • Item # 6391
  • SKU #
  • Mfr. Part #

FitmentView All

Yamaha Models

  • Raptor 700 : 2013–2016
  • Raptor 700R : 2006–2009, 2011–2014
  • Raptor 700R Anniversary : 2006
  • Raptor 700R GYTR : 2007
  • Raptor 700R SE : 2007–2014
  • YFZ450 : 2004–2009, 2012–2013
  • YFZ450 Balance : 2006–2007
  • YFZ450 SE : 2007–2008
  • YFZ450R : 2009–2015
  • YFZ450R SE : 2009–2015
  • YFZ450X : 2010–2011
  • YFZ450X SE : 2011

Product Reviews 1 - 4 of 4

Overall Rating: 4.90 of 5

(4 Reviews)
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What Other Riders Are Saying...

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Very Nice!

Good sound and easy install. Definitely added more punch to my '07 TRX450R.

Geary - May 19, 2015

(Scottsdale, AZ)

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Great pipe

Very good quality exhaust I really like the sound and tone it gives my trx450 it went on very easily the hardest part was having to wait for the high temp silicone to dry over night to hear it lol the only negative thing I have to say which is a given is that it makes the air fuel mixture even leaner than stock so it get complimented real good with the dynojet stage 2 which I'm more than happy with on my quad

Daniel - April 17, 2015

(Galloway, OH)

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FMF - Factory 4.1 PowerBomb Exhaust system

The installation was very easy and is sounds great the bike performance is awesome. I am ready for race season.

Billy - February 15, 2010

(Mustang, OK)

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great!

Works great on my KX450. I use this setup on all my bikes, works absolutely great. BUY THIS SETUP!

jon - November 4, 2008

(vancouver, BC)