The FMF Powercore 4 S/A Exhaust System, manufacturer part number 041015 and vendor part number 79-2658, is designed for Honda CRF80F and CRF100F motorcycles. This Powercore 4 system improves exhaust flow while helping reduce weight compared with the stock exhaust, making it a practical performance upgrade for trail and recreational riding.
Its high-flow core provides increased surface area to absorb sound while allowing more exhaust to move through the system. The canister is constructed from extruded aluminum, while the stainless steel midpipe is MIG/TIG welded for durability. Space-age internal packing helps manage sound levels and withstand the demands of off-road use. The system also includes a maintenance-free stainless steel spark arrestor screen approved by the U.S. Forest Service for applicable off-highway riding areas.
Feature: High-flow Powercore 4 design supports improved exhaust flow and sound absorption.
Feature: Extruded aluminum canister helps reduce weight while maintaining strength.
Feature: Stainless steel midpipe is MIG/TIG welded for reliable construction.
Feature: Space-age internal packing supports consistent sound control and durability.
Feature: U.S. Forest Service-approved stainless steel spark arrestor screen requires minimal maintenance.
Fitment includes 2004–2009 and 2011–2013 Honda CRF100F models, along with the 2004 Honda CRF80F. Verify the motorcycle model year and exhaust configuration before installation to ensure proper fitment. Brand: FMF. Manufacturer part number: 041015. Vendor part number: 79-2658.
Features:
- High-flow Powercore 4 design supports improved exhaust flow and sound absorption
- Extruded aluminum canister helps reduce weight while maintaining strength
- MIG/TIG-welded stainless steel midpipe provides durable construction
- Space-age internal packing supports sound control and long-term performance
- U.S. Forest Service-approved maintenance-free stainless steel spark arrestor screen
Fitment:
2001 Honda XR100R
2001 Honda XR80
2001 Honda XR80R
2002 Honda XR100R
2002 Honda XR80
2002 Honda XR80R
2003 Honda XR100R
2003 Honda XR80
2003 Honda XR80R
2004 Honda CRF100F
2004 Honda CRF80F
2005 Honda CRF100F
2005 Honda CRF80F
2006 Honda CRF100F
2006 Honda CRF80F
2007 Honda CRF100F
2007 Honda CRF80F
2008 Honda CRF100F
2008 Honda CRF80F
2009 Honda CRF100F
2009 Honda CRF80F
2010 Honda CRF100F
2010 Honda CRF80F
2011 Honda CRF100F
2011 Honda CRF80F
2012 Honda CRF100F
2012 Honda CRF80F
2013 Honda CRF100F
2013 Honda CRF80F