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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2020-2022 Powerstroke 5" Downpipe Back Exhaust - No Muffler (FLO-20352NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-20352NM-Dirty Diesel Customs 2020-2022 Powerstroke 5" Downpipe Back Exhaust - No Muffler (FLO-20352NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-20352NM-Dirty Diesel Customs
Flo-Pro2020-2022 Powerstroke 5" Downpipe Back Exhaust - No Muffler (FLO-20352NM)
$870.00 CAD
2019+ Cummins 5" Flexpipe Back Exhaust System No Muffler SS (FLO-SS690NM)-Downpipe Back Exhaust System-Flo-Pro-512015-Dirty Diesel Customs
Flo-Pro2019+ Cummins 5" Flexpipe Back Exhaust System No Muffler SS (FLO-SS690NM)
$1,270.00 CAD
2023-2024 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (421039)-Turbo Back Exhaust System-Flo-Pro-421039-Dirty Diesel Customs
Flo-Pro2023-2024 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (421039)
$890.00 CAD
2021-2023 Ecodiesel Gladiator 3" Downpipe Back Exhaust w/ Muffler (361003)-Downpipe Back Exhaust System-Flo-Pro-361003-Dirty Diesel Customs
Flo-Pro2021-2023 Ecodiesel Gladiator 3" Downpipe Back Exhaust w/ Muffler (361003)
$660.00 CAD
2007.5-2012 Cummins 4" Stainless Downpipe (FLO-57111)-Downpipe-Flo-Pro-412001-Dirty Diesel Customs
Flo-Pro2007.5-2012 Cummins 4" Stainless Downpipe (FLO-57111)
$440.00 CAD
2007.5-2009 Cummins C&C 4" Delete Pipe (FLO-27123)-Delete Pipe-Flo-Pro-411012-Dirty Diesel Customs
Flo-Pro2007.5-2009 Cummins C&C 4" Delete Pipe (FLO-27123)
$320.00 CAD
2011-2012 Cummins C&C 60" SCR Race Pipe (FLO-21124)-Delete Pipe-Flo-Pro-411003-Dirty Diesel Customs
Flo-Pro2011-2012 Cummins C&C 60" SCR Race Pipe (FLO-21124)
$520.00 CAD
2011-2015 Duramax 4" CAT Delete Pipe (FLO-11111)-Cat Delete Pipe-Flo-Pro-431001-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 4" CAT Delete Pipe (FLO-11111)
$480.00 CAD
1999-2002 Powerstroke C&C 4" Turbo Back Exhaust w/ Muffler (FLO-866)-Turbo Back Exhaust System-Flo-Pro-421113-Dirty Diesel Customs
Flo-Pro1999-2002 Powerstroke C&C 4" Turbo Back Exhaust w/ Muffler (FLO-866)
$860.00 CAD
2010-2012 Cummins 5" Turboback Dual Exhaust - No Muffler (FLO-766)-Turbo Back Exhaust System-Flo-Pro-511012-Dirty Diesel Customs
Flo-Pro2010-2012 Cummins 5" Turboback Dual Exhaust - No Muffler (FLO-766)
$1,380.00 CAD
*Discontinued* 2017-2019 Duramax C&C 5" Downpipe Back Exhaust (FLO 687)-Downpipe Back Exhaust System-Flo-Pro-FLO-687-Dirty Diesel Customs *Discontinued* 2017-2019 Duramax C&C 5" Downpipe Back Exhaust (FLO 687)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS687-Dirty Diesel Customs
Flo-Pro*Discontinued* 2017-2019 Duramax C&C 5" Downpipe Back Exhaust (FLO 687)
Discontinued
2008-2010 Powerstroke 5" Turbo Back Exhaust System w/ Muffler (FLO 643NB)-Turbo Back Exhaust System-Flo-Pro-FLO-643NB-Dirty Diesel Customs 2008-2010 Powerstroke 5" Turbo Back Exhaust System w/ Muffler (FLO 643NB)-Turbo Back Exhaust System-Flo-Pro-FLO-SS643NB-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 5" Turbo Back Exhaust System w/ Muffler (FLO 643NB)
From $1,140.00 CAD
2007.5-2012 Cummins 4" CAT & DPF Delete (FLO 835FNB)-Delete Pipe-Flo-Pro-411021-Dirty Diesel Customs 2007.5-2012 Cummins 4" CAT & DPF Delete (FLO 835FNB)-Delete Pipe-Flo-Pro-411021-Dirty Diesel Customs
Flo-Pro2007.5-2012 Cummins 4" CAT & DPF Delete (FLO 835FNB)
$600.00 CAD
*Discontinued* 2005-2007 Powerstroke 4" Cat Back Dual Exhaust (FLO 715)-Cat Back Exhaust System-Flo-Pro-FLO-715-Dirty Diesel Customs
Flo-Pro*Discontinued* 2005-2007 Powerstroke 4" Cat Back Dual Exhaust (FLO 715)
Discontinued
2019+ Cummins 4" Flex-Pipe Back Exhaust System No Muffler SS (FLO SS890NM)-Downpipe Back Exhaust System-Flo-Pro-412029-Dirty Diesel Customs
Flo-Pro2019+ Cummins 4" Flex-Pipe Back Exhaust System No Muffler SS (FLO SS890NM)
$910.00 CAD
2007.5-2010 Duramax 4" SS Cat Delete Pipe (FLO-40810)-Cat Delete Pipe-Flo-Pro-FLO-40810-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax 4" SS Cat Delete Pipe (FLO-40810)
$310.00 CAD
2007.5-2010 Duramax C&C 4" DPF Delete w/ Muffler (FLO-851)-Delete Pipe-Flo-Pro-431012-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax C&C 4" DPF Delete w/ Muffler (FLO-851)
$800.00 CAD
*Discontinued* 2008-2010 Powerstroke DPF Delete Pipe (FLO-68113NB)-Delete Pipe-Flo-Pro-FLO-68113NB-Dirty Diesel Customs
Flo-Pro*Discontinued* 2008-2010 Powerstroke DPF Delete Pipe (FLO-68113NB)
Discontinued
2011-2013 Duramax 5" Cat Back Exhaust w/ Muffler (FLO 660)-Cat Back Exhaust System-Flo-Pro-FLO-660-Dirty Diesel Customs 2011-2013 Duramax 5" Cat Back Exhaust w/ Muffler (FLO 660)-Cat Back Exhaust System-Flo-Pro-FLO-SS660-Dirty Diesel Customs
Flo-Pro2011-2013 Duramax 5" Cat Back Exhaust w/ Muffler (FLO 660)
From $970.00 CAD
2010-2012 Cummins 4" DPF Back Exhaust - No Muffler (FLO 641)-Filter Back Exhaust System-Flo-Pro-511103-Dirty Diesel Customs
Flo-Pro2010-2012 Cummins 4" DPF Back Exhaust - No Muffler (FLO 641)
$570.00 CAD
2007.5-2009 Cummins C&C 5" Turbo-Back Single Exhaust No Muffler (FLO 644)-Turbo Back Exhaust System-Flo-Pro-FLO-644-Dirty Diesel Customs 2007.5-2009 Cummins C&C 5" Turbo-Back Single Exhaust No Muffler (FLO 644)-Turbo Back Exhaust System-Flo-Pro-FLO-644-Dirty Diesel Customs
Flo-Pro2007.5-2009 Cummins C&C 5" Turbo-Back Single Exhaust No Muffler (FLO 644)
$1,050.00 CAD
2008-2010 Powerstroke 5" DPF Back Exhaust System No Muffler (FLO 630)-Filter Back Exhaust System-Flo-Pro-FLO-630-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 5" DPF Back Exhaust System No Muffler (FLO 630)
$530.00 CAD
2008-2010 Powerstroke 4" Downpipe Back Dual Exhaust - No Muffler (FLO 733NB)-Downpipe Back Exhaust System-Flo-Pro-FLO-733NB-Dirty Diesel Customs 2008-2010 Powerstroke 4" Downpipe Back Dual Exhaust - No Muffler (FLO 733NB)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS733NB-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 4" Downpipe Back Dual Exhaust - No Muffler (FLO 733NB)
From $1,110.00 CAD
2007.5-2009 Cummins 4" Turbo Back Dual Exhaust - No Muffler (FLO 739)-Turbo Back Exhaust System-Flo-Pro-FLO-739NB-Dirty Diesel Customs 2007.5-2009 Cummins 4" Turbo Back Dual Exhaust - No Muffler (FLO 739)-Turbo Back Exhaust System-Flo-Pro-FLO-SS739NB-Dirty Diesel Customs
Flo-Pro2007.5-2009 Cummins 4" Turbo Back Dual Exhaust - No Muffler (FLO 739)
Discontinued
*Discontinued* 2005-2007 Powerstroke 4" Turbo Back Dual Exhaust (FLO 716)-Turbo Back Exhaust System-Flo-Pro-FLO-716-Dirty Diesel Customs
Flo-Pro*Discontinued* 2005-2007 Powerstroke 4" Turbo Back Dual Exhaust (FLO 716)
Discontinued
*Discontinued* 2003-2004.5 Cummins 4" Turbo Back Dual Exhaust System w/ Muffler (FLO-705)-Turbo Back Exhaust System-Flo-Pro-FLO-705-Dirty Diesel Customs
Flo-Pro*Discontinued* 2003-2004.5 Cummins 4" Turbo Back Dual Exhaust System w/ Muffler (FLO-705)
Discontinued
*Discontinued* 2001-2007 Duramax DRW 4" Downpipe Back Dual Exhaust w/ Muffler (FLO-726)-Downpipe Back Exhaust System-Flo-Pro-FLO-726-Dirty Diesel Customs
Flo-Pro*Discontinued* 2001-2007 Duramax DRW 4" Downpipe Back Dual Exhaust w/ Muffler (FLO-726)
Discontinued
New Product
2020-2023 Duramax 5" Downpipe Back Exhaust w/Muffler SS (FLO-SS20151)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS20151-Dirty Diesel Customs
Flo-Pro2020-2023 Duramax 5" Downpipe Back Exhaust w/Muffler SS (FLO-SS20151)
$1,240.00 CAD
2020-2022 Powerstroke 4" Downpipe Back Exhaust No Muffler SS (FLO-SS20343NM)-Downpipe Back Exhaust System-Flo-Pro-422031-Dirty Diesel Customs 2020-2022 Powerstroke 4" Downpipe Back Exhaust No Muffler SS (FLO-SS20343NM)-Downpipe Back Exhaust System-Flo-Pro-422031-Dirty Diesel Customs
Flo-Pro2020-2022 Powerstroke 4" Downpipe Back Exhaust No Muffler SS (FLO-SS20343NM)
$930.00 CAD
2020-2022 Powerstroke 5" Downpipe Back Exhaust - No Muffler SS (FLO-SS20352NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS20352NM-Dirty Diesel Customs 2020-2022 Powerstroke 5" Downpipe Back Exhaust - No Muffler SS (FLO-SS20352NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS20352NM-Dirty Diesel Customs
Flo-Pro2020-2022 Powerstroke 5" Downpipe Back Exhaust - No Muffler SS (FLO-SS20352NM)
$1,210.00 CAD
2023-2024 Powerstroke 5" Turbo Back Exhaust System - No Muffler (521037)-Turbo Back Exhaust System-Flo-Pro-521037-Dirty Diesel Customs
Flo-Pro2023-2024 Powerstroke 5" Turbo Back Exhaust System - No Muffler (521037)
$1,000.00 CAD
2023-2024 Powerstroke 5" Turbo Back Exhaust System w/ Muffler (521036)-Turbo Back Exhaust System-Flo-Pro-Dirty Diesel Customs
Flo-Pro2023-2024 Powerstroke 5" Turbo Back Exhaust System w/ Muffler (521036)
$1,200.00 CAD
2023-2024 Powerstroke 4" Turbo Back Exhaust System - No Muffler (421040)-Turbo Back Exhaust System-Flo-Pro-421040-Dirty Diesel Customs
Flo-Pro2023-2024 Powerstroke 4" Turbo Back Exhaust System - No Muffler (421040)
$790.00 CAD
*Discontinued* 2017-2019 Duramax C&C 4" SS Downpipe Back Exhaust (FLO-SS887)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS887-Dirty Diesel Customs
Flo-Pro*Discontinued* 2017-2019 Duramax C&C 4" SS Downpipe Back Exhaust (FLO-SS887)
Discontinued
2008-2010 Powerstroke 4" DPF Delete Pipe (FLO-38123NB)-Delete Pipe-Flo-Pro-FLO-38123NB-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 4" DPF Delete Pipe (FLO-38123NB)
$370.00 CAD
2008-2010 Powerstroke 3.5" DPF Delete Pipe (FLO-38113NB)-Delete Pipe-Flo-Pro-421001-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 3.5" DPF Delete Pipe (FLO-38113NB)
$290.00 CAD
*Discontinued* 2007.5-2010 Duramax EC/LB 4" Stainless DPF Delete Pipe (FLO-48243)-Delete Pipe-Flo-Pro-FLO-48243-Dirty Diesel Customs
Flo-Pro*Discontinued* 2007.5-2010 Duramax EC/LB 4" Stainless DPF Delete Pipe (FLO-48243)
Discontinued
*Discontinued* 2007.5-2010 Duramax CC/LB 4" Stainless DPF Delete Pipe (FLO-48233)-Delete Pipe-Flo-Pro-432005-Dirty Diesel Customs
Flo-Pro*Discontinued* 2007.5-2010 Duramax CC/LB 4" Stainless DPF Delete Pipe (FLO-48233)
Discontinued
2011-2015 Duramax 4" Cat Delete Pipe (FLO-41111)-Cat Delete Pipe-Flo-Pro-FLO-41111-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 4" Cat Delete Pipe (FLO-41111)
$460.00 CAD
2007.5-2010 Duramax RC-LB 4" DPF Delete Pipe (FLO-18253)-Delete Pipe-Flo-Pro-431007-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax RC-LB 4" DPF Delete Pipe (FLO-18253)
$450.00 CAD
2017-2019 Duramax C&C 4" Downpipe Back Exhaust w/ Muffler (FLO-887)-Downpipe Back Exhaust System-Flo-Pro-431024-Dirty Diesel Customs
Flo-Pro2017-2019 Duramax C&C 4" Downpipe Back Exhaust w/ Muffler (FLO-887)
$920.00 CAD
*Discontinued* 2017-2019 Duramax C&C 4" Downpipe Back Exhaust - No Muffler (FLO-887NM)-Downpipe Back Exhaust System-Flo-Pro-431025-Dirty Diesel Customs *Discontinued* 2017-2019 Duramax C&C 4" Downpipe Back Exhaust - No Muffler (FLO-887NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS887NM-Dirty Diesel Customs
Flo-Pro*Discontinued* 2017-2019 Duramax C&C 4" Downpipe Back Exhaust - No Muffler (FLO-887NM)
Discontinued
2008-2010 Powerstroke 4" Turbo Back Dual Exhaust - No Muffler (FLO 738NB)-Turbo Back Exhaust System-Flo-Pro-FLO-738NB-Dirty Diesel Customs 2008-2010 Powerstroke 4" Turbo Back Dual Exhaust - No Muffler (FLO 738NB)-Turbo Back Exhaust System-Flo-Pro-FLO-SS738NB-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 4" Turbo Back Dual Exhaust - No Muffler (FLO 738NB)
From $1,210.00 CAD
*Discontinued* 2004.5-2007 Cummins 4" Turbo Back Dual Exhaust (FLO-719)-Turbo Back Exhaust System-Flo-Pro-FLO-719-Dirty Diesel Customs
Flo-Pro*Discontinued* 2004.5-2007 Cummins 4" Turbo Back Dual Exhaust (FLO-719)
Discontinued
*Discontinued* 2004.5-2007 Cummins 4" Cat back Dual Exhaust (FLO-718)-Cat Back Exhaust System-Flo-Pro-FLO-718-Dirty Diesel Customs
Flo-Pro*Discontinued* 2004.5-2007 Cummins 4" Cat back Dual Exhaust (FLO-718)
Discontinued
2016-2022 2.8L Duramax 3" Turboback Exhaust System - No Muffler (FLO-875NM)-Turbo Back Exhaust System-Flo-Pro-Dirty Diesel Customs
Flo-Pro2016-2022 2.8L Duramax 3" Turboback Exhaust System - No Muffler (FLO-875NM)
From $690.00 CAD
2018-2020 F-150 Powerstroke 4" Turboback Exhaust System No Muffler (FLO 889NM)-Turbo Back Exhaust System-Flo-Pro-421019-Dirty Diesel Customs
Flo-Pro2018-2020 F-150 Powerstroke 4" Turboback Exhaust System No Muffler (FLO 889NM)
$670.00 CAD
2007.5-2009 Cummins C&C 5" Turbo Back Exhaust w/Muffler SS (FLO-SS645)-Turbo Back Exhaust System-Flo-Pro-FLO-SS645-Dirty Diesel Customs
Flo-Pro2007.5-2009 Cummins C&C 5" Turbo Back Exhaust w/Muffler SS (FLO-SS645)
$1,420.00 CAD
2007.5-2010 Cummins C&C 4" Stainless CAT & DPF Delete Pipe (FLO-57123)-Delete Pipe-Flo-Pro-412004-Dirty Diesel Customs
Flo-Pro2007.5-2010 Cummins C&C 4" Stainless CAT & DPF Delete Pipe (FLO-57123)
$370.00 CAD
*Discontinued* 2007.5-2010 Duramax RC-LB 4" Stainless DPF Delete Pipe (FLO-48253)-Delete Pipe-Flo-Pro-FLO-48253-Dirty Diesel Customs
Flo-Pro*Discontinued* 2007.5-2010 Duramax RC-LB 4" Stainless DPF Delete Pipe (FLO-48253)
Discontinued