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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2003.5-2007 Powerstroke 5" Turbo Back Exhaust System w/ Muffler (FLO 614)-Turbo Back Exhaust System-Flo-Pro-Dirty Diesel Customs
Flo-Pro2003.5-2007 Powerstroke 5" Turbo Back Exhaust System w/ Muffler (FLO 614)
From $930.00 CAD
2003.5-2007 Powerstroke 4" Cat Back Exhaust System w/ Muffler (FLO-825)-Cat Back Exhaust System-Flo-Pro-421108-Dirty Diesel Customs 2003.5-2007 Powerstroke 4" Cat Back Exhaust System w/ Muffler (FLO-825)-Cat Back Exhaust System-Flo-Pro-FLO-SS825-Dirty Diesel Customs
Flo-Pro2003.5-2007 Powerstroke 4" Cat Back Exhaust System w/ Muffler (FLO-825)
From $530.00 CAD
2015.5-2016 Duramax 4" CAT & DPF Delete w/ Muffler (FLO 872M)-Delete Pipe-Flo-Pro-431030-Dirty Diesel Customs
Flo-Pro2015.5-2016 Duramax 4" CAT & DPF Delete w/ Muffler (FLO 872M)
$640.00 CAD
*Discontinued* 2007.5-2010 Duramax CC/SB 4" Stainless DPF Delete Pipe (FLO-48213)-Delete Pipe-Flo-Pro-FLO-48213-Dirty Diesel Customs
Flo-Pro*Discontinued* 2007.5-2010 Duramax CC/SB 4" Stainless DPF Delete Pipe (FLO-48213)
Discontinued
2011-2012 Cummins C&C Over 60" SCR Race Pipe (FLO-21125)-Delete Pipe-Flo-Pro-411004-Dirty Diesel Customs
Flo-Pro2011-2012 Cummins C&C Over 60" SCR Race Pipe (FLO-21125)
$480.00 CAD
2011-2015 Duramax 5" Downpipe Back Dual Exhaust - No Muffler (FLO-764)-Downpipe Back Exhaust System-Flo-Pro-FLO-764-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 5" Downpipe Back Dual Exhaust - No Muffler (FLO-764)
$1,380.00 CAD
2015.5-2016 Duramax 5" Downpipe Back Dual Exhaust - No Muffler (FLO 771)-Downpipe Back Exhaust System-Flo-Pro-FLO-771-Dirty Diesel Customs 2015.5-2016 Duramax 5" Downpipe Back Dual Exhaust - No Muffler (FLO 771)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS771-Dirty Diesel Customs
Flo-Pro2015.5-2016 Duramax 5" Downpipe Back Dual Exhaust - No Muffler (FLO 771)
From $1,310.00 CAD
1999-2002 Powerstroke 5" Turbo Back Exhaust - No Muffler (FLO 631NM)-Turbo Back Exhaust System-Flo-Pro-FLO-631NM-Dirty Diesel Customs 1999-2002 Powerstroke 5" Turbo Back Exhaust - No Muffler (FLO 631NM)-Turbo Back Exhaust System-Flo-Pro-FLO-SS631NM-Dirty Diesel Customs
Flo-Pro1999-2002 Powerstroke 5" Turbo Back Exhaust - No Muffler (FLO 631NM)
From $930.00 CAD
2011-2019 Powerstroke 4" Downpipe Back Dual Exhaust System - No Muffler (FLO 753NB)-Downpipe Back Exhaust System-Flo-Pro-421005-Dirty Diesel Customs 2011-2019 Powerstroke 4" Downpipe Back Dual Exhaust System - No Muffler (FLO 753NB)-Downpipe Back Exhaust System-Flo-Pro-422005-Dirty Diesel Customs
Flo-Pro2011-2019 Powerstroke 4" Downpipe Back Dual Exhaust System - No Muffler (FLO 753NB)
From $1,160.00 CAD
2004.5-2007 Cummins 5" Cat Back Exhaust w/ Muffler (FLO 618)-Cat Back Exhaust System-Flo-Pro-511101-Dirty Diesel Customs 2004.5-2007 Cummins 5" Cat Back Exhaust w/ Muffler (FLO 618)-Cat Back Exhaust System-Flo-Pro-512116-Dirty Diesel Customs
Flo-Pro2004.5-2007 Cummins 5" Cat Back Exhaust w/ Muffler (FLO 618)
From $670.00 CAD
Universal Round Body Twister Resonator (41277)-Muffler-Flo-Pro-Dirty Diesel Customs
Flo-ProUniversal Round Body Twister Resonator (41277)
From $124.20 CAD
2020-2022 Duramax 4" Downpipe Back Exhaust - No Muffler (FLO-20141NM)-Downpipe Back Exhaust System-Flo-Pro-Dirty Diesel Customs
Flo-Pro2020-2022 Duramax 4" Downpipe Back Exhaust - No Muffler (FLO-20141NM)
From $870.00 CAD
2016-2019 Nissan Cummins 4" Downpipe Back Exhaust - No Muffler (FLO 878NM)-Downpipe Back Exhaust System-Flo-Pro-441002-Dirty Diesel Customs 2016-2019 Nissan Cummins 4" Downpipe Back Exhaust - No Muffler (FLO 878NM)-Downpipe Back Exhaust System-Flo-Pro-442002-Dirty Diesel Customs
Flo-Pro2016-2019 Nissan Cummins 4" Downpipe Back Exhaust - No Muffler (FLO 878NM)
From $830.00 CAD
2008-2010 Powerstroke Intake Elbow (IE300)-Intake Elbows-Flo-Pro-FLO-IE300-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke Intake Elbow (IE300)
$110.00 CAD
2007.5-2010 Duramax EC-SB 4" DPF Delete Pipe (FLO-18223)-Delete Pipe-Flo-Pro-431004-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax EC-SB 4" DPF Delete Pipe (FLO-18223)
$450.00 CAD
2007.5-2012 Cummins 4" CAT Delete Pipe (FLO-27111)-Cat Delete Pipe-Flo-Pro-411009-Dirty Diesel Customs
Flo-Pro2007.5-2012 Cummins 4" CAT Delete Pipe (FLO-27111)
$370.00 CAD
2003.5-2007 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (FLO 424)-Turbo Back Exhaust System-Flo-Pro-421020-Dirty Diesel Customs 2003.5-2007 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (FLO 424)-Turbo Back Exhaust System-Flo-Pro-FLO-SS424-Dirty Diesel Customs
Flo-Pro2003.5-2007 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (FLO 424)
From $780.00 CAD
2007.5-2012 Cummins 4" Stainless DPF Delete Pipe (FLO-57113NB)-Delete Pipe-Flo-Pro-412003-Dirty Diesel Customs
Flo-Pro2007.5-2012 Cummins 4" Stainless DPF Delete Pipe (FLO-57113NB)
$320.00 CAD
2007.5-2010 Duramax CC-LB 4" DPF Delete Pipe (FLO-18233)-Delete Pipe-Flo-Pro-431005-Dirty Diesel Customs
Flo-Pro2007.5-2010 Duramax CC-LB 4" DPF Delete Pipe (FLO-18233)
$490.00 CAD
*Discontinued* 2011-2019 Powerstroke C&C 4" Turboback Exhaust - No Muffler (FLO-877NM)-Turbo Back Exhaust System-Flo-Pro-421017-Dirty Diesel Customs *Discontinued* 2011-2019 Powerstroke C&C 4" Turboback Exhaust - No Muffler (FLO-877NM)-Turbo Back Exhaust System-Flo-Pro-422017-Dirty Diesel Customs
Flo-Pro*Discontinued* 2011-2019 Powerstroke C&C 4" Turboback Exhaust - No Muffler (FLO-877NM)
Discontinued
2023-2024 Powerstroke 4" Race Pipe w/ Muffler (421041)-Delete Pipe-Flo-Pro-421041-Dirty Diesel Customs
Flo-Pro2023-2024 Powerstroke 4" Race Pipe w/ Muffler (421041)
$630.00 CAD
2020-2022 Powerstroke 4" SS Downpipe Back Exhaust w/ Muffler (FLO-SS20343)-Downpipe Back Exhaust System-Flo-Pro-422030-Dirty Diesel Customs 2020-2022 Powerstroke 4" SS Downpipe Back Exhaust w/ Muffler (FLO-SS20343)-Downpipe Back Exhaust System-Flo-Pro-422030-Dirty Diesel Customs
Flo-Pro2020-2022 Powerstroke 4" SS Downpipe Back Exhaust w/ Muffler (FLO-SS20343)
$1,020.00 CAD
2010-2012 Cummins C&C EGR Cooler Delete Kit (FLO-301005)-EGR Delete-Flo-Pro-FLO-301005-Dirty Diesel Customs
Flo-Pro2010-2012 Cummins C&C EGR Cooler Delete Kit (FLO-301005)
$145.00 CAD
2016-2019 Nissan Cummins 5" Downpipe Back Exhaust - No Muffler (FLO-678NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-678NM-Dirty Diesel Customs 2016-2019 Nissan Cummins 5" Downpipe Back Exhaust - No Muffler (FLO-678NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS678NM-Dirty Diesel Customs
Flo-Pro2016-2019 Nissan Cummins 5" Downpipe Back Exhaust - No Muffler (FLO-678NM)
From $950.00 CAD
*Discontinued* 2001-2004 Duramax 3" Downpipe (FLO-10101)-Downpipe-Flo-Pro-FLO-10101-Dirty Diesel Customs
Flo-Pro*Discontinued* 2001-2004 Duramax 3" Downpipe (FLO-10101)
Discontinued
2011-2015 Duramax 4" Cat-Back Exhaust - No Muffler (FLO-861)-Cat Back Exhaust System-Flo-Pro-431014-Dirty Diesel Customs 2011-2015 Duramax 4" Cat-Back Exhaust - No Muffler (FLO-861)-Cat Back Exhaust System-Flo-Pro-FLO-SS861-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 4" Cat-Back Exhaust - No Muffler (FLO-861)
From $680.00 CAD
2011-2015 Duramax 5" Cat Back Race Exhaust - No Muffler (FLO 661)-Cat Back Exhaust System-Flo-Pro-FLO-661-Dirty Diesel Customs
Flo-Pro2011-2015 Duramax 5" Cat Back Race Exhaust - No Muffler (FLO 661)
$950.00 CAD
2001-2007 Duramax 4" Cat Back Exhaust System w/ Muffler (FLO-820)-Cat Back Exhaust System-Flo-Pro-431108-Dirty Diesel Customs 2001-2007 Duramax 4" Cat Back Exhaust System w/ Muffler (FLO-820)-Cat Back Exhaust System-Flo-Pro-432119-Dirty Diesel Customs
Flo-Pro2001-2007 Duramax 4" Cat Back Exhaust System w/ Muffler (FLO-820)
From $630.00 CAD
2013-2018 Cummins C&C 4" DPF Race Pipe (411037)-Filter Back Exhaust System-Flo-Pro-411037-Dirty Diesel Customs 2013-2018 Cummins C&C 4" DPF Race Pipe (411037)-Filter Back Exhaust System-Flo-Pro-411033-Dirty Diesel Customs
Flo-Pro2013-2018 Cummins C&C 4" DPF Race Pipe (411037)
From $583.00 CAD
2016-2019 Nissan Cummins 5" Downpipe Back Exhaust w/ Muffler (FLO-678)-Downpipe Back Exhaust System-Flo-Pro-FLO-678-Dirty Diesel Customs 2016-2019 Nissan Cummins 5" Downpipe Back Exhaust w/ Muffler (FLO-678)-Downpipe Back Exhaust System-Flo-Pro-FLO-678-Dirty Diesel Customs
Flo-Pro2016-2019 Nissan Cummins 5" Downpipe Back Exhaust w/ Muffler (FLO-678)
$1,000.00 CAD
2008-2010 Powerstroke SS Cold Side Intercooler Pipe (IC300)-Intercooler Piping-Flo-Pro-FLO-IC300-Dirty Diesel Customs 2008-2010 Powerstroke SS Cold Side Intercooler Pipe (IC300)-Intercooler Piping-Flo-Pro-FLO-IC300-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke SS Cold Side Intercooler Pipe (IC300)
$157.00 CAD
*Discontinued* 1994-2002 Cummins 4" Turbo Back Dual Exhaust w/ Muffler (FLO 702)-Turbo Back Exhaust System-Flo-Pro-FLO-702-Dirty Diesel Customs
Flo-Pro*Discontinued* 1994-2002 Cummins 4" Turbo Back Dual Exhaust w/ Muffler (FLO 702)
Discontinued
2007.5-2009 Cummins C&C 5" Turbo Back Exhaust w/ Muffler (FLO 645)-Turbo Back Exhaust System-Flo-Pro-511008-Dirty Diesel Customs
Flo-Pro2007.5-2009 Cummins C&C 5" Turbo Back Exhaust w/ Muffler (FLO 645)
$1,140.00 CAD
*Discontinued* 2003.5-2004 Powerstroke 4" Turbo Back Dual Exhaust System w/ Muffler (FLO-714)-Turbo Back Exhaust System-Flo-Pro-FLO-714-Dirty Diesel Customs
Flo-Pro*Discontinued* 2003.5-2004 Powerstroke 4" Turbo Back Dual Exhaust System w/ Muffler (FLO-714)
Discontinued
2020-2022 Powerstroke 4" Downpipe Back Exhaust No Muffler (FLO-20343NM)-Downpipe Back Exhaust System-Flo-Pro-421031-Dirty Diesel Customs 2020-2022 Powerstroke 4" Downpipe Back Exhaust No Muffler (FLO-20343NM)-Downpipe Back Exhaust System-Flo-Pro-421031-Dirty Diesel Customs
Flo-Pro2020-2022 Powerstroke 4" Downpipe Back Exhaust No Muffler (FLO-20343NM)
$720.00 CAD
2019+ Cummins 4" Flexpipe Back Exhaust System No Muffler (FLO 890NM)-Downpipe Back Exhaust System-Flo-Pro-411029-Dirty Diesel Customs
Flo-Pro2019+ Cummins 4" Flexpipe Back Exhaust System No Muffler (FLO 890NM)
$710.00 CAD
2023-2024 Powerstroke 4" Race Pipe - No Muffler (421042)-Delete Pipe-Flo-Pro-421042-Dirty Diesel Customs
Flo-Pro2023-2024 Powerstroke 4" Race Pipe - No Muffler (421042)
$570.00 CAD
2016-2019 Nissan Cummins DPF Race Pipe w/ Muffler (FLO-879M)-Delete Pipe-Flo-Pro-441004-Dirty Diesel Customs
Flo-Pro2016-2019 Nissan Cummins DPF Race Pipe w/ Muffler (FLO-879M)
$540.00 CAD
2003-2007 Powerstroke Turbo Y-Pipe (FLO-30400)-Turbo Elbow Adapter-Flo-Pro-FLO-30400-Dirty Diesel Customs
Flo-Pro2003-2007 Powerstroke Turbo Y-Pipe (FLO-30400)
$450.00 CAD
2008-2010 Powerstroke C&C 4" Downpipe Back Race Exhaust w/ Muffler (FLO-867)-Downpipe Back Exhaust System-Flo-Pro-421015-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke C&C 4" Downpipe Back Race Exhaust w/ Muffler (FLO-867)
$830.00 CAD
*Discontinued* 2011-2015 Duramax 4" Cat Back Dual Exhaust - No Muffler (FLO 761)-Cat Back Exhaust System-Flo-Pro-FLO-761-Dirty Diesel Customs *Discontinued* 2011-2015 Duramax 4" Cat Back Dual Exhaust - No Muffler (FLO 761)-Cat Back Exhaust System-Flo-Pro-FLO-SS761-Dirty Diesel Customs
Flo-Pro*Discontinued* 2011-2015 Duramax 4" Cat Back Dual Exhaust - No Muffler (FLO 761)
Discontinued
2008-2010 Powerstroke 5" Downpipe Back Exhaust w/ Muffler (FLO 632NB)-Downpipe Back Exhaust System-Flo-Pro-FLO-632NB-Dirty Diesel Customs 2008-2010 Powerstroke 5" Downpipe Back Exhaust w/ Muffler (FLO 632NB)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS632NB-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 5" Downpipe Back Exhaust w/ Muffler (FLO 632NB)
From $950.00 CAD
2008-2010 Powerstroke 4" DPF Back Exhaust System No Muffler (FLO 830)-Filter Back Exhaust System-Flo-Pro-421109-Dirty Diesel Customs
Flo-Pro2008-2010 Powerstroke 4" DPF Back Exhaust System No Muffler (FLO 830)
$450.00 CAD
*Discontinued* 2007.5-2010 Duramax 4" Turbo Back Dual Exhaust - No Muffler (FLO 734)-Turbo Back Exhaust System-Flo-Pro-431008-Dirty Diesel Customs
Flo-Pro*Discontinued* 2007.5-2010 Duramax 4" Turbo Back Dual Exhaust - No Muffler (FLO 734)
Discontinued
2003.5-2007 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (FLO-524)-Turbo Back Exhaust System-Flo-Pro-FLO-524-Dirty Diesel Customs
Flo-Pro2003.5-2007 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (FLO-524)
$780.00 CAD
2001-2005 Duramax 4" Cat Back Exhaust System - 4-Bolt w/ Muffler (FLO-823)-Cat Back Exhaust System-Flo-Pro-431110-Dirty Diesel Customs 2001-2005 Duramax 4" Cat Back Exhaust System - 4-Bolt w/ Muffler (FLO-823)-Cat Back Exhaust System-Flo-Pro-FLO-SS823-Dirty Diesel Customs
Flo-Pro2001-2005 Duramax 4" Cat Back Exhaust System - 4-Bolt w/ Muffler (FLO-823)
From $670.00 CAD
1999-2002 Powerstroke 4" Turbo Back Dual Exhaust w/ Muffler (FLO 731)-Turbo Back Exhaust System-Flo-Pro-FLO-731-Dirty Diesel Customs 1999-2002 Powerstroke 4" Turbo Back Dual Exhaust w/ Muffler (FLO 731)-Turbo Back Exhaust System-Flo-Pro-FLO-SS731-Dirty Diesel Customs
Flo-Pro1999-2002 Powerstroke 4" Turbo Back Dual Exhaust w/ Muffler (FLO 731)
From $1,050.00 CAD
*Discontinued* 1999-2002 Powerstroke 5" Turbo Back Exhaust w/ Muffler (FLO 631)-Turbo Back Exhaust System-Flo-Pro-FLO-631-Dirty Diesel Customs *Discontinued* 1999-2002 Powerstroke 5" Turbo Back Exhaust w/ Muffler (FLO 631)-Turbo Back Exhaust System-Flo-Pro-FLO-SS631-Dirty Diesel Customs
Flo-Pro*Discontinued* 1999-2002 Powerstroke 5" Turbo Back Exhaust w/ Muffler (FLO 631)
Discontinued
New Product
2020-2023 Duramax 5" Downpipe Back Exhaust No Muffler SS (FLO-SS20151NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS20151NM-Dirty Diesel Customs
Flo-Pro2020-2023 Duramax 5" Downpipe Back Exhaust No Muffler SS (FLO-SS20151NM)
$1,160.00 CAD
New Product
2020-2023 Duramax 5" Downpipe Back Exhaust w/Muffler (FLO-20151)-Downpipe Back Exhaust System-Flo-Pro-FLO-20151-Dirty Diesel Customs
Flo-Pro2020-2023 Duramax 5" Downpipe Back Exhaust w/Muffler (FLO-20151)
$1,030.00 CAD