FMF Racing FMF041597 Honda XR650L Power Bomb 4-Stroke Header System

A 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the "Bomb" at this key point, the expansion and contraction of exhaust sonics through the system resulting in a flow increase of nearly 10%. The surface of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up at higher air pressures (RPMs). The Power Bomb is a "pre-muffler" of sorts, which helps to lower the bike's sound output because it provides more sound-absorbing surface area to allow the exhaust gases to become absorbed.

The FMF Racing FMF041597 4-Stroke header system incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system. This positioning is designed to manage the expansion and contraction of exhaust sonics through the system, resulting in a flow increase of nearly 10%.

The Power Bomb functions as a pre-muffler, providing additional sound-absorbing surface area. Exhaust gases pass through the perforated core into the steel wool packing, allowing the air to expand, cool and ramp back up at higher air pressures and RPMs. This design helps lower the bike's sound output while supporting exhaust flow performance.

Key Features & Performance Benefits

• Patented Power Bomb module: Positioned in the initial stage of the header system to manage exhaust flow and sonics.
• Nearly 10% flow increase: The Power Bomb design is described as providing a flow increase of nearly 10%.
• Pre-muffler function: Adds sound-absorbing surface area to help lower exhaust sound output.
• Perforated-core construction: Directs sound into steel wool packing while allowing exhaust air to expand and cool.

Key Product Specifications & Technical Data

• Brand: FMF Racing
• Part number: FMF041597
• Product type: 4-Stroke header system
• Power Bomb module: Patented FMF design
• Flow performance: Nearly 10% flow increase stated by the manufacturer
• Sound control: Power Bomb pre-muffler design
• Core and packing: Perforated core with steel wool packing
• Regulatory data: EPA compliant; CARB approval is not stated

What's Included in the Box

One FMF Racing 4-Stroke header system. Fitment data available: 1993–2002 Honda XR650L.

Fitments:
1993 Honda XR650L Base
1994 Honda XR650L Base
1995 Honda XR650L Base
1996 Honda XR650L Base
1997 Honda XR650L Base
1998 Honda XR650L Base
1999 Honda XR650L Base
2000 Honda XR650L Base
2001 Honda XR650L Base
2002 Honda XR650L Base
2003 Honda XR650L Base
2004 Honda XR650L Base
2005 Honda XR650L Base
2006 Honda XR650L Base
2007 Honda XR650L Base
2008 Honda XR650L Base
2009 Honda XR650L Base
2012 Honda XR650L Base
2013 Honda XR650L Base
2014 Honda XR650L Base
2015 Honda XR650L Base
2016 Honda XR650L Base
2017 Honda XR650L Base
2018 Honda XR650L Base
2019 Honda XR650L Base
2020 Honda XR650L Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1