Mel's MFG (Formerly Flo~Pro)

Mel's MFG (Formerly known as Flo~Pro) specializes in high-flowing and top-quality Performance Exhaust systems that look just as good as they sound.

Click here to learn more about Flo-Pros transition to Mel's MFG

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2015.5-2016 Duramax 5" Downpipe Back Exhaust System w/ Muffler (FLO 671)-Downpipe Back Exhaust System-Flo-Pro-FLO-671-Dirty Diesel Customs 2015.5-2016 Duramax 5" Downpipe Back Exhaust System w/ Muffler (FLO 671)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS671-Dirty Diesel Customs
Flo-Pro2015.5-2016 Duramax 5" Downpipe Back Exhaust System w/ Muffler (FLO 671)
From $1,010.00 CAD
1994-1997.5 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (FLO-821)-Turbo Back Exhaust System-Flo-Pro-421107-Dirty Diesel Customs 1994-1997.5 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (FLO-821)-Turbo Back Exhaust System-Flo-Pro-422124-Dirty Diesel Customs
Flo-Pro1994-1997.5 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (FLO-821)
From $780.00 CAD
2017-2019 Duramax 5" Downpipe Back Exhaust w/ Muffler (FLO 680)-Downpipe Back Exhaust System-Flo-Pro-FLO-680-Dirty Diesel Customs 2017-2019 Duramax 5" Downpipe Back Exhaust w/ Muffler (FLO 680)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS680-Dirty Diesel Customs
Flo-Pro2017-2019 Duramax 5" Downpipe Back Exhaust w/ Muffler (FLO 680)
From $970.00 CAD
1989-1993 Cummins 4" Turbo Back Exhaust w/ Muffler (FLO-847)-Turbo Back Exhaust System-Flo-Pro-411110-Dirty Diesel Customs 1989-1993 Cummins 4" Turbo Back Exhaust w/ Muffler (FLO-847)-Turbo Back Exhaust System-Flo-Pro-412119-Dirty Diesel Customs
Flo-Pro1989-1993 Cummins 4" Turbo Back Exhaust w/ Muffler (FLO-847)
From $800.00 CAD
2008-2010 Powerstroke 4" Downpipe Back Exhaust w/ Muffler (FLO 832NB)-Downpipe Back Exhaust System-Flo-Pro-421006-Dirty Diesel Customs 2008-2010 Powerstroke 4" Downpipe Back Exhaust w/ Muffler (FLO 832NB)-Downpipe Back Exhaust System-Flo-Pro-422006-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 4" Downpipe Back Exhaust w/ Muffler (FLO 832NB)
From $810.00 CAD
2016-2019 Nissan Cummins 4" Downpipe Back Exhaust w/ Muffler (FLO-878)-Downpipe Back Exhaust System-Flo-Pro-441001-Dirty Diesel Customs 2016-2019 Nissan Cummins 4" Downpipe Back Exhaust w/ Muffler (FLO-878)-Downpipe Back Exhaust System-Flo-Pro-442001-Dirty Diesel Customs
Flo-Pro2016-2019 Nissan Cummins 4" Downpipe Back Exhaust w/ Muffler (FLO-878)
From $880.00 CAD
2007.5-2010 Duramax 4" CAT Delete Pipe (FLO-10810)-Cat Delete Pipe-Flo-Pro-431026-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax 4" CAT Delete Pipe (FLO-10810)
$230.00 CAD
2010-2018 Mercedes Sprinter 3" CAT & DPF Race Pipe (FLO-18431)-Delete Pipe-Flo-Pro-371001-Dirty Diesel Customs
Flo-Pro2010-2018 Mercedes Sprinter 3" CAT & DPF Race Pipe (FLO-18431)
$530.00 CAD
2019 Powerstroke 4" DPF & CAT Delete Pipe (FLO-859NB)-Delete Pipe-Flo-Pro-Dirty Diesel Customs
Flo-Pro2019 Powerstroke 4" DPF & CAT Delete Pipe (FLO-859NB)
From $400.00 CAD
2015.5-2016 Duramax 4" Downpipe Back Exhaust - No Muffler (FLO 871NM)-Downpipe Back Exhaust System-Flo-Pro-431019-Dirty Diesel Customs
Flo-Pro2015.5-2016 Duramax 4" Downpipe Back Exhaust - No Muffler (FLO 871NM)
$870.00 CAD
1999-2002 Powerstroke 4" Turbo Back Exhaust w/ Muffler (FLO 831)-Turbo Back Exhaust System-Flo-Pro-421110-Dirty Diesel Customs 1999-2002 Powerstroke 4" Turbo Back Exhaust w/ Muffler (FLO 831)-Turbo Back Exhaust System-Flo-Pro-422127-Dirty Diesel Customs
Flo-Pro1999-2002 Powerstroke 4" Turbo Back Exhaust w/ Muffler (FLO 831)
From $660.00 CAD
2018-2020 F-150 Powerstroke 3.5" CAT & DPF Race Pipes w/ 3" Downpipe (FLO 888)-Delete Pipe-Flo-Pro-321001-Dirty Diesel Customs
Flo-Pro2018-2020 F-150 Powerstroke 3.5" CAT & DPF Race Pipes w/ 3" Downpipe (FLO 888)
$400.00 CAD
2011-2019 Powerstroke C&C 4" Downpipe Back Exhaust w/ Muffler (FLO-877)-Turbo Back Exhaust System-Flo-Pro-421016-Dirty Diesel Customs 2011-2019 Powerstroke C&C 4" Downpipe Back Exhaust w/ Muffler (FLO-877)-Turbo Back Exhaust System-Flo-Pro-422016-Dirty Diesel Customs
Flo-Pro2011-2019 Powerstroke C&C 4" Downpipe Back Exhaust w/ Muffler (FLO-877)
From $880.00 CAD
2013-2018 Cummins 5" Turboback Dual Exhaust - No Muffler (FLO-768)-Turbo Back Exhaust System-Flo-Pro-511013-Dirty Diesel Customs
Flo-Pro2013-2018 Cummins 5" Turboback Dual Exhaust - No Muffler (FLO-768)
$1,380.00 CAD
2011-2018 Cummins C&C 5" Turbo Back Exhaust w/ Muffler (FLO 655)-Turbo Back Exhaust System-Flo-Pro-511011-Dirty Diesel Customs 2011-2018 Cummins C&C 5" Turbo Back Exhaust w/ Muffler (FLO 655)-Turbo Back Exhaust System-Flo-Pro-512011-Dirty Diesel Customs
Flo-Pro2011-2018 Cummins C&C 5" Turbo Back Exhaust w/ Muffler (FLO 655)
From $1,160.00 CAD
2007.5-2012 Cummins 4" CAT and DPF Delete w/ Muffler (FLO 835M)-Delete Pipe-Flo-Pro-411035-Dirty Diesel Customs
Flo-Pro2007.5-2012 Cummins 4" CAT and DPF Delete w/ Muffler (FLO 835M)
$480.00 CAD
2011-2015 Duramax 4" Stainless DPF Delete Pipe w/ Adapter (FLO-41112)-Delete Pipe-Flo-Pro-432002-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 4" Stainless DPF Delete Pipe w/ Adapter (FLO-41112)
$400.00 CAD
1999-2002 Powerstroke 4" Turbo Back Exhaust - No Muffler (FLO 831NM)-Turbo Back Exhaust System-Flo-Pro-421117-Dirty Diesel Customs 1999-2002 Powerstroke 4" Turbo Back Exhaust - No Muffler (FLO 831NM)-Turbo Back Exhaust System-Flo-Pro-422128-Dirty Diesel Customs
Flo-Pro1999-2002 Powerstroke 4" Turbo Back Exhaust - No Muffler (FLO 831NM)
From $590.00 CAD
2008-2010 Powerstroke 6.4L 4" Downpipe Kit (FLO 846)-Downpipe-Flo-Pro-421011-Dirty Diesel Customs 2008-2010 Powerstroke 6.4L 4" Downpipe Kit (FLO 846)-Downpipe-Flo-Pro-422011-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 6.4L 4" Downpipe Kit (FLO 846)
From $400.00 CAD
2007.5-2010 Duramax 5" Downpipe Back Exhaust System w/ Muffler (FLO 634)-Downpipe Back Exhaust System-Flo-Pro-FLO-634-Dirty Diesel Customs 2007.5-2010 Duramax 5" Downpipe Back Exhaust System w/ Muffler (FLO 634)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS634-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax 5" Downpipe Back Exhaust System w/ Muffler (FLO 634)
From $1,020.00 CAD
2011-2015 Duramax 4" Cat & DPF Delete w/ Muffler (FLO-862M)-Delete Pipe-Flo-Pro-431029-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 4" Cat & DPF Delete w/ Muffler (FLO-862M)
$590.00 CAD
2007.5-2009 Cummins 5" Turbo Back Exhaust w/ Muffler (FLO 1636)-Turbo Back Exhaust System-Flo-Pro-511001-Dirty Diesel Customs 2007.5-2009 Cummins 5" Turbo Back Exhaust w/ Muffler (FLO 1636)-Turbo Back Exhaust System-Flo-Pro-512001-Dirty Diesel Customs
Flo-Pro2007.5-2009 Cummins 5" Turbo Back Exhaust w/ Muffler (FLO 1636)
From $950.00 CAD
New Product
2019 Powerstroke 4" DPF & CAT Delete Pipe w/ Muffler (FLO-859M)-Delete Pipe-Flo-Pro-421036-Dirty Diesel Customs
Flo-Pro2019 Powerstroke 4" DPF & CAT Delete Pipe w/ Muffler (FLO-859M)
$520.00 CAD
2020-2022 Powerstroke 5" SS Downpipe Back Exhaust w/ Muffler (FLO-SS20352)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS20352-Dirty Diesel Customs 2020-2022 Powerstroke 5" SS Downpipe Back Exhaust w/ Muffler (FLO-SS20352)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS20352-Dirty Diesel Customs
Flo-Pro2020-2022 Powerstroke 5" SS Downpipe Back Exhaust w/ Muffler (FLO-SS20352)
$1,280.00 CAD
2011-2019 Powerstroke 5" DPF Back Single Exhaust No Muffler (FLO-640)-Filter Back Exhaust System-Flo-Pro-FLO-640-Dirty Diesel Customs
Flo-Pro2011-2019 Powerstroke 5" DPF Back Single Exhaust No Muffler (FLO-640)
$590.00 CAD
2011-2018 Cummins C&C 5" Turbo Back Race Exhaust - No Muffler (FLO-654)-Turbo Back Exhaust System-Flo-Pro-511010-Dirty Diesel Customs 2011-2018 Cummins C&C 5" Turbo Back Race Exhaust - No Muffler (FLO-654)-Turbo Back Exhaust System-Flo-Pro-FLO-SS654-Dirty Diesel Customs
Flo-Pro2011-2018 Cummins C&C 5" Turbo Back Race Exhaust - No Muffler (FLO-654)
From $1,050.00 CAD
2008-2010 Powerstroke 5" Turbo Back Exhaust System - No Muffler (FLO 638NB)-Turbo Back Exhaust System-Flo-Pro-FLO-638NB-Dirty Diesel Customs 2008-2010 Powerstroke 5" Turbo Back Exhaust System - No Muffler (FLO 638NB)-Turbo Back Exhaust System-Flo-Pro-FLO-SS638NB-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 5" Turbo Back Exhaust System - No Muffler (FLO 638NB)
From $1,010.00 CAD
2020-2022 Powerstroke 4" SS CAT & DPF Race Pipe - No Muffler (FLO-SS20342)-Delete Pipe-Flo-Pro-422027-Dirty Diesel Customs 2020-2022 Powerstroke 4" SS CAT & DPF Race Pipe - No Muffler (FLO-SS20342)-Delete Pipe-Flo-Pro-422027-Dirty Diesel Customs
Flo-Pro2020-2022 Powerstroke 4" SS CAT & DPF Race Pipe - No Muffler (FLO-SS20342)
$530.00 CAD
2008-2010 Powerstroke 4" Downpipe Back Race Exhaust - No Muffler (FLO 833NB)-Downpipe Back Exhaust System-Flo-Pro-421007-Dirty Diesel Customs 2008-2010 Powerstroke 4" Downpipe Back Race Exhaust - No Muffler (FLO 833NB)-Downpipe Back Exhaust System-Flo-Pro-422007-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 4" Downpipe Back Race Exhaust - No Muffler (FLO 833NB)
From $710.00 CAD
2007.5-2010 Duramax CC-SB 4" DPF Delete Pipe (FLO-18213)-Delete Pipe-Flo-Pro-431003-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax CC-SB 4" DPF Delete Pipe (FLO-18213)
$460.00 CAD
2011-2015 Duramax 4" DPF Delete Pipe (FLO-11112)-Delete Pipe-Flo-Pro-431002-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 4" DPF Delete Pipe (FLO-11112)
$410.00 CAD
1994-2002 Cummins - 5" Turbo Back Exhaust w/ Muffler (FLO 602)-Turbo Back Exhaust System-Flo-Pro-511100-Dirty Diesel Customs 1994-2002 Cummins - 5" Turbo Back Exhaust w/ Muffler (FLO 602)-Turbo Back Exhaust System-Flo-Pro-512114-Dirty Diesel Customs
Flo-Pro1994-2002 Cummins - 5" Turbo Back Exhaust w/ Muffler (FLO 602)
From $930.00 CAD
2004.5-2007 Cummins 4" Cat Back Exhaust w/ Muffler (FLO 818)-Cat Back Exhaust System-Flo-Pro-411109-Dirty Diesel Customs
Flo-Pro2004.5-2007 Cummins 4" Cat Back Exhaust w/ Muffler (FLO 818)
$570.00 CAD
2018-2020 F-150 Powerstroke 4" Turboback Exhaust System w/ Muffler (FLO 889)-Turbo Back Exhaust System-Flo-Pro-421018-Dirty Diesel Customs
Flo-Pro2018-2020 F-150 Powerstroke 4" Turboback Exhaust System w/ Muffler (FLO 889)
$750.00 CAD
2011-2012 Cummins C&C 4" DPF Delete Pipe (FLO-21122)-Delete Pipe-Flo-Pro-411001-Dirty Diesel Customs 2011-2012 Cummins C&C 4" DPF Delete Pipe (FLO-21122)-Delete Pipe-Flo-Pro-411002-Dirty Diesel Customs
Flo-Pro2011-2012 Cummins C&C 4" DPF Delete Pipe (FLO-21122)
From $460.00 CAD
2020-2022 3.0L Duramax 3" Delete Pipe - No Muffler (FLO-431032)-Turbo Back Exhaust System-Flo-Pro-FLO-431032-Dirty Diesel Customs
Flo-Pro2020-2022 3.0L Duramax 3" Delete Pipe - No Muffler (FLO-431032)
$500.00 CAD
2011-2019 Powerstroke 5" Downpipe Back Dual Exhaust - No Muffler (FLO-767)-Downpipe Back Exhaust System-Flo-Pro-521008-Dirty Diesel Customs
Flo-Pro2011-2019 Powerstroke 5" Downpipe Back Dual Exhaust - No Muffler (FLO-767)
$1,380.00 CAD
2007.5-2009 Cummins 5" DPF Back Exhaust No Muffler (FLO 629)-Filter Back Exhaust System-Flo-Pro-511102-Dirty Diesel Customs
Flo-Pro2007.5-2009 Cummins 5" DPF Back Exhaust No Muffler (FLO 629)
$450.00 CAD
2007.5-2010 Duramax EC-LB 4" DPF Delete Pipe (FLO-18243)-Delete Pipe-Flo-Pro-431006-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax EC-LB 4" DPF Delete Pipe (FLO-18243)
$460.00 CAD
2007.5-2010 Duramax 5" DPF Back Exhaust System - No Muffler (FLO 628)-Filter Back Exhaust System-Flo-Pro-FLO-628-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax 5" DPF Back Exhaust System - No Muffler (FLO 628)
$490.00 CAD
2003-2004.5 Cummins 5" Turbo Back Exhaust System w/ Muffler (FLO-605)-Turbo Back Exhaust System-Flo-Pro-511019-Dirty Diesel Customs 2003-2004.5 Cummins 5" Turbo Back Exhaust System w/ Muffler (FLO-605)-Turbo Back Exhaust System-Flo-Pro-512016-Dirty Diesel Customs
Flo-Pro2003-2004.5 Cummins 5" Turbo Back Exhaust System w/ Muffler (FLO-605)
From $930.00 CAD
2001-2007 Duramax 4" Downpipe Back Dual Exhaust System w/ Muffler (FLO-701)-Downpipe Back Exhaust System-Flo-Pro-431102-Dirty Diesel Customs 2001-2007 Duramax 4" Downpipe Back Dual Exhaust System w/ Muffler (FLO-701)-Downpipe Back Exhaust System-Flo-Pro-431102-Dirty Diesel Customs
Flo-Pro2001-2007 Duramax 4" Downpipe Back Dual Exhaust System w/ Muffler (FLO-701)
$1,050.00 CAD
2019+ Cummins 5" Flexpipe Back Exhaust System No Muffler (FLO 690NM)-Downpipe Back Exhaust System-Flo-Pro-511018-Dirty Diesel Customs
Flo-Pro2019+ Cummins 5" Flexpipe Back Exhaust System No Muffler (FLO 690NM)
$920.00 CAD
2020-2022 Powerstroke C&C 4" Performance Pipes w/ Muffler (FLO-20344)-Delete Pipe-Flo-Pro-421029-Dirty Diesel Customs
Flo-Pro2020-2022 Powerstroke C&C 4" Performance Pipes w/ Muffler (FLO-20344)
$490.00 CAD
2007.5-2012 Cummins DPF Delete Pipe (FLO-27113NB)-Delete Pipe-Flo-Pro-411011-Dirty Diesel Customs
Flo-Pro2007.5-2012 Cummins DPF Delete Pipe (FLO-27113NB)
$290.00 CAD
2017-2019 Duramax 5" Downpipe Back Dual Exhaust - No Muffler (FLO-780)-Downpipe Back Exhaust System-Flo-Pro-FLO-780-Dirty Diesel Customs
Flo-Pro2017-2019 Duramax 5" Downpipe Back Dual Exhaust - No Muffler (FLO-780)
$1,310.00 CAD
2008-2010 Powerstroke 4" Turbo Back Exhaust w/ Muffler (FLO 843NB)-Turbo Back Exhaust System-Flo-Pro-421010-Dirty Diesel Customs 2008-2010 Powerstroke 4" Turbo Back Exhaust w/ Muffler (FLO 843NB)-Turbo Back Exhaust System-Flo-Pro-422010-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 4" Turbo Back Exhaust w/ Muffler (FLO 843NB)
From $910.00 CAD
*Discontinued* 2015.5-2016 Duramax 3" Downpipe (FLO-10103)-Downpipe-Flo-Pro-FLO-10103-Dirty Diesel Customs
Flo-Pro*Discontinued* 2015.5-2016 Duramax 3" Downpipe (FLO-10103)
Discontinued
2011-2015 Duramax 4" Cat Back Exhaust System w/ Muffler (FLO 860)-Cat Back Exhaust System-Flo-Pro-431013-Dirty Diesel Customs 2011-2015 Duramax 4" Cat Back Exhaust System w/ Muffler (FLO 860)-Cat Back Exhaust System-Flo-Pro-432013-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 4" Cat Back Exhaust System w/ Muffler (FLO 860)
From $770.00 CAD
2008-2010 Powerstroke 4" Turbo Back Exhaust - No Muffler (FLO 838NB)-Turbo Back Exhaust System-Flo-Pro-421009-Dirty Diesel Customs 2008-2010 Powerstroke 4" Turbo Back Exhaust - No Muffler (FLO 838NB)-Turbo Back Exhaust System-Flo-Pro-422009-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 4" Turbo Back Exhaust - No Muffler (FLO 838NB)
From $850.00 CAD