FMF Racing Suzuki DRZ400 06-07/400S 00-22/400SM 05-21 / Kawasaki KLX400SR 03-04 Q4 S/A Muffler

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. Fitment: 2000 Suzuki DR-Z400S Base 2001 Suzuki DR-Z400S Base 2002 Suzuki DR-Z400S Base 2003 Kawasaki KLX400SR Base 2003 Suzuki DR-Z400S Base 2004 Suzuki DR-Z400S Base 2005 Suzuki DR-Z400S Base 2005 Suzuki DR-Z400SM Base 2006 Suzuki DR-Z400 Base 2006 Suzuki DR-Z400S Base 2006 Suzuki DR-Z400SM Base 2007 Suzuki DR-Z400 Base 2007 Suzuki DR-Z400S Base 2007 Suzuki DR-Z400SM Base 2008 Suzuki DR-Z400S Base 2008 Suzuki DR-Z400SM Base 2009 Suzuki DR-Z400S Base 2009 Suzuki DR-Z400SM Base 2010 Suzuki DR-Z400S Base 2010 Suzuki DR-Z400SM Base 2011 Suzuki DR-Z400S Base 2011 Suzuki DR-Z400SM Base 2012 Suzuki DR-Z400S Base 2012 Suzuki DR-Z400SM Base 2013 Suzuki DR-Z400S Base 2013 Suzuki DR-Z400SM Base 2014 Suzuki DR-Z400S Base 2014 Suzuki DR-Z400SM Base 2015 Suzuki DR-Z400S Base 2015 Suzuki DR-Z400SM Base 2016 Suzuki DR-Z400S Base 2016 Suzuki DR-Z400SM Base 2017 Suzuki DR-Z400S Base 2017 Suzuki DR-Z400SM Base 2018 Suzuki DR-Z400S Base 2018 Suzuki DR-Z400SM Base 2019 Suzuki DR-Z400S Base 2019 Suzuki DR-Z400SM Base 2020 Suzuki DR-Z400S Base 2020 Suzuki DR-Z400SM Base 2021 Suzuki DR-Z400S Base 2021 Suzuki DR-Z400SM Base