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- Features a distinctive stepped megaphone design
- Broad/Usable Torque Increase
- Stepped Headers, Large Merge Collector
- 4.5-inch muffler body at exit
| Years | Make | Model |
|---|---|---|
| 1986 - 1999 | Harley-Davidson | Softail Custom FXSTC |
| 1986 - 2006 | Harley-Davidson | Softail Standard FXST |
| 1987 - 2006 | Harley-Davidson | Softail Heritage Classic FLSTC |
| 1988 - 2006 | Harley-Davidson | Softail Springer FXSTS |
| 1990 - 2006 | Harley-Davidson | Softail Fat Boy FLSTF |
| 1993 | Harley-Davidson | Softail Nostalgia FLSTN |
| 1994 - 1996 | Harley-Davidson | Softail Heritage Special FLSTN |
| 1995 - 1997 | Harley-Davidson | Softail Bad Boy FXSTSB |
| 1997 - 2003 | Harley-Davidson | Softail Heritage Springer FLSTS |
| 1999 - 2006 | Harley-Davidson | Softail Night Train FXSTB |
| 2000 - 2006 | Harley-Davidson | Softail Deuce FXSTD |
| 2001 - 2011 | Harley-Davidson | Softail Heritage Classic EFI FLSTCI |
| 2001 - 2009 | Harley-Davidson | Softail Night Train EFI FXSTBI |
| 2001 - 2006 | Harley-Davidson | Softail Springer EFI FXSTSI |
| 2001 - 2007 | Harley-Davidson | Softail Deuce EFI FXSTDI |
| 2001 - 2007 | Harley-Davidson | Softail Standard EFI FXSTI |
| 2001 - 2003 | Harley-Davidson | Softail Heritage Springer EFI FLSTSI |
| 2002 - 2011 | Harley-Davidson | Softail Fat Boy EFI FLSTFI |
| 2003 | Harley-Davidson | Screamin' Eagle Deuce FXSTDSE |
| 2004 | Harley-Davidson | Screamin' Eagle Deuce FXSTDSE2 |
| 2005 - 2006 | Harley-Davidson | Softail Springer Classic FLSTSC |
| 2005 | Harley-Davidson | 15th Anniversary Fat Boy FLSTF |
| 2005 - 2006 | Harley-Davidson | Softail Deluxe FLSTN |
| 2005 | Harley-Davidson | Screamin' Eagle Fat Boy FLSTFSE |
| 2005 - 2007 | Harley-Davidson | Softail Springer Classic EFI FLSTSCI |
| 2005 - 2011 | Harley-Davidson | Softail Deluxe EFI FLSTNI |
| 2006 | Harley-Davidson | Softail Heritage FLST |
| 2006 | Harley-Davidson | Softail Heritage EFI FLSTI |
| 2006 | Harley-Davidson | Softail Heritage FLST |
| 2006 | Harley-Davidson | Screamin' Eagle Fat Boy FLSTFSE2 |
| 2007 | Harley-Davidson | Screamin' Eagle Softail Springer FXSTSSE |
| 2007 - 2010 | Harley-Davidson | Softail Custom EFI FXSTC |
| 2008 - 2011 | Harley-Davidson | Softail Cross Bones FLSTSB |
| 2008 | Harley-Davidson | Screamin' Eagle Softail Springer FXSTSSE2 |
| 2009 | Harley-Davidson | CVO Softail Springer FXSTSSE3 |
| 2010 - 2011 | Harley-Davidson | Fat Boy Lo FLSTFB |
| 2010 | Harley-Davidson | CVO Softail Convertible FLSTSE |
| 2011 | Harley-Davidson | CVO Softail Convertible FLSTSE2 |
| 2011 | Harley-Davidson | Blackline FXS |