4" Filter Back, Dual Outlet Single Side, AL, 2013-2018 2500/3500 Cummins 6.7L (CC/SB)
4" Filter Back, Dual Outlet Single Side, AL, 2013-UP 2500/3500 Cummins 6.7L (All excl. CC/SB)
4" Filter Back, Dual Outlet Single Side, T304, 2011-2019 2500/3500
4" Filter Back, Dual Outlet Single Side, T409, 2008-2010 F-250/350/450 6.4L
4" Filter Back, Dual Outlet Single Side, T409, 2013-UP 2500/3500 Cummins 6.7L (All excl. CC/SB)
4" Filter Back, Single Side Exit, AL + Down Pipe, 2008-2010 F-250/350/450 6.4 L
4" Filter Back, Single Side Exit, AL, 2007-2010 2500/3500 Duramax, All LMM
4" Filter Back, Single Side Exit, AL, 2008-2010 F-250/350/450 6.4 L
4" Filter Back, Single Side Exit, AL, 2013-UP 2500/3500 Cummins 6.7L (All excl. CC/SB)
4" Filter Back, Single Side Exit, AL, 2013-UP 2500/3500 Cummins 6.7L (CC/SB)
4" Filter Back, Single Side Exit, Black Coated, 2008-2010 F-250/350/450 6.4 L
4" Filter Back, Single Side Exit, P, 2008-2010 F-250/350/450 6.4 L
4" Filter Back, Single Side Exit, T409 + Down Pipe, 2008-2010 F-250/350/450 6.4 L
4" Filter Back, Single Side Exit, T409, 2007-2010 2500/3500 Duramax, All LMM
4" Filter Back, Single Side Exit, T409, 2008-2010 F-250/350/450 6.4 L
4" Filter Back, Single Side, 304, Chevy/GMC 2500/3500 Duramax 2011-2019
4" Filter Back, Single Side, AL, 2011-2019 2500/3500
4" Filter Back, Single Side, Black Coated, 2011-2019 2500/3500
4" Filter Back, Single Side, P, 2007-2010 2500/3500 Duramax, All LMM
4" Filter Back, Single, No Muffler, T409, 2008-2010 F-250/350/450 6.4 L
4" Filter Back,Cool Duals, AL Ford F-250/350/450 6.7L 2017 - UP
4" Front-Pipe w/Flange, AL, 2001-2005 Duramax 2500/3500
4" inlet 5" Tip Cover Set - 6 3/4" and 9 3/4" in length, T304, 2008-2017 F250/350/450 6.4 L