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
Black Friday PriceBlack Friday PriceMel's Manufacturing
2020-2022 Powerstroke C&C 4" Performance Pipes w/ Muffler (421029)
Part Number: 421029Mft Part Number: 20344-421029Regular price $570.00 CADUnit price
Mel's Manufacturing
2019+ Cummins 4" CAT & DPF Delete Pipe w/ Muffler (411036)
Part Number: 411036Mft Part Number: 893M-411036Regular price $580.00 CADUnit price
Mel's Manufacturing
Universal 4"/ 30" Muffler Replacement Pipe (40230)
Part Number: 40230Regular price $80.08 CADUnit price
Mel's Manufacturing
2019+ Cummins 4" Flex-Pipe Back Exhaust System No Muffler SS (412029)
Part Number: 412029Mft Part Number: SS890NM-412029Regular price $1,000.00 CADUnit price
Mel's Manufacturing
2023-2024 Powerstroke 4" Turbo Back Exhaust System - No Muffler (421040)
Part Number: 421040Regular price $870.00 CADUnit price
Mel's Manufacturing
2015.5-2016 Duramax 5" Downpipe Back Dual Exhaust - No Muffler (531014)
Part Number: 531014Mft Part Number: 771-531014Regular price $1,440.00 CADUnit price
Mel's Manufacturing
2011-2019 Powerstroke 4" Downpipe Back Dual Exhaust System - No Muffler (421005 / 422005)
Part Number: 421005Mft Part Number: 753NB-421005Regular priceFrom $1,280.00 CADUnit price
Mel's Manufacturing
2019+ Cummins 4" Flexpipe Back Exhaust System w/ Muffler (411028)
Part Number: 411028Mft Part Number: 890-411028Regular price $880.00 CADUnit price
Mel's Manufacturing
2020-2025 Duramax 5" Downpipe Back Exhaust w/Muffler SS (532016)
Part Number: 532016Mft Part Number: SS20151-532016Regular price $1,430.00 CADUnit price
Mel's Manufacturing
2020-2025 Duramax 5" Downpipe Back Exhaust No Muffler SS (532017)
Part Number: 532017Mft Part Number: SS20151NM-532017Regular price $1,330.00 CADUnit price
Mel's Manufacturing
2023-2026 Powerstroke 5" Turbo Back Exhaust System w/ Muffler (521036)
Part Number: 521036Regular price $1,320.00 CADUnit price
Mel's Manufacturing
2023-2026 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (421039)
Part Number: 421039Regular price $980.00 CADUnit price
Mel's Manufacturing
2007.5-2010 Duramax CC-LB 4" DPF Delete Pipe (431005)
Part Number: 431005Mft Part Number: 18233-431005Regular price $540.00 CADUnit price
Mel's Manufacturing
2004.5-2007 Cummins 5" Cat Back Exhaust w / Muffler (511101 / 512116 )
Part Number: 511101Mft Part Number: 618-511101Regular priceFrom $740.00 CADUnit price
Mel's Manufacturing
2003.5-2007 Powerstroke 4" Turbo Back Exhaust System w/ Muffler (421020)
Part Number: 421020Regular price $860.00 CADUnit price
Mel's Manufacturing
2020-2025 Duramax 5" Downpipe Back Exhaust - No Muffler (531017)
Part Number: 531017Mft Part Number: 20151NM-531017Regular price $1,050.00 CADUnit price
Mel's Manufacturing
2016-2022 2.8L Duramax 3" Turboback Exhaust System w/ Muffler (331001 / 332001)
Part Number: 331001Mft Part Number: 875-331001Regular priceFrom $790.00 CADUnit price
Mel's Manufacturing
2017-2019 Duramax 5" Downpipe Back Exhaust - No Muffler (531010 / 532010)
Part Number: 531010Mft Part Number: 680NM-531010Regular priceFrom $1,000.00 CADUnit price
Mel's Manufacturing
2016-2019 Nissan Cummins DPF Race Pipe w/ Muffler (441004)
Part Number: 441004Mft Part Number: 879M-441004Regular price $590.00 CADUnit price
Mel's Manufacturing
2016-2019 Nissan Cummins 5" Downpipe Back Exhaust - No Muffler (541002 / 542002)
Part Number: 541002Mft Part Number: 678NM-541002Regular priceFrom $1,050.00 CADUnit price
Mel's Manufacturing
2007.5-2010 Duramax EC-SB 4" DPF Delete Pipe (431004)
Part Number: 431004Mft Part Number: 18223-431004Regular price $500.00 CADUnit price
Mel's Manufacturing
2007.5-2012 Cummins 4" CAT Delete Pipe (411009)
Part Number: 411009Mft Part Number: 27111-411009Regular price $410.00 CADUnit price
Mel's Manufacturing
2007.5-2009 Cummins C&C 5" Turbo Back Exhaust w/ Muffler (511008)
Part Number: 511008Mft Part Number: 645-511008Regular price $1,250.00 CADUnit price
Mel's Manufacturing
2017-2023 Duramax 4" CAT / DPF Race Pipe - No Muffler (431023 / 432023)
Part Number: 431023Mft Part Number: 882-431023Regular priceFrom $650.00 CADUnit price
Mel's Manufacturing
2016-2019 Nissan Cummins 4" Downpipe Back Exhaust - No Muffler (441002 / 442002)
Part Number: 441002Mft Part Number: 878NM-441002Regular priceFrom $910.00 CADUnit price
Mel's Manufacturing
2007.5-2009 Cummins C&C 4" Delete Pipe (411012)
Part Number: 411012Mft Part Number: 27123-411012Regular price $350.00 CADUnit price
Mel's Manufacturing
2001-2007 Duramax 4" Cat Back Exhaust System w / Muffler (431108 / 432119)
Part Number: 431108Mft Part Number: 820-431108Regular priceFrom $690.00 CADUnit price
Mel's Manufacturing
Universal 4"/ 20" Muffler Replacement Pipe (40220)
Part Number: 40220Regular price $50.05 CADUnit price
Mel's Manufacturing
2007.5-2012 Cummins 4" Stainless DPF Delete Pipe (412003)
Part Number: 412003Mft Part Number: 57113NB-412003Regular price $350.00 CADUnit price
Mel's Manufacturing
2011-2015 Duramax 4" Cat-Back Exhaust - No Muffler (431014)
Part Number: 431014Mft Part Number: 861-431014Regular price $750.00 CADUnit price
Mel's Manufacturing
Universal Diesel 30" Stainless Steel Muffler (M12774 & M12772)
Part Number: M12772Regular priceFrom $82.63 CADUnit price
Mel's Manufacturing
2023-2026 Powerstroke 5" Turbo Back Exhaust System - No Muffler (521037)
Part Number: 521037Regular price $1,100.00 CADUnit price
Mel's Manufacturing
2013-2018 Cummins 5" Turboback Exhaust System - No Muffler (511005 / 512005)
Part Number: 511005Mft Part Number: 1673-511005Regular priceFrom $970.00 CADUnit price
Mel's Manufacturing
Universal 5"/ 20" Muffler Replacement Pipe (50220)
Part Number: 50220Regular price $70.07 CADUnit price
Mel's Manufacturing
2007.5-2012 Cummins 4" Stainless Downpipe (412001)
Part Number: 412001Mft Part Number: 57111-412001Regular price $480.00 CADUnit price
Mel's Manufacturing
2003.5-2007 Powerstroke 4" Turbo Back Exhaust System w / Muffler (521009)
Part Number: 521009Regular priceFrom $860.00 CADUnit price
Mel's Manufacturing
2023-2026 Powerstroke 4" Turbo Back Race Pipe w/ Muffler (421041)
Part Number: 421041Regular price $690.00 CADUnit price
Mel's Manufacturing
2017-2025 Duramax 4" CAT & DPF Race Pipe w/ Muffler (431031)
Part Number: 431031Mft Part Number: 882M-431031Regular price $740.00 CADUnit price
Mel's Manufacturing
2013-2018 Cummins 4" Cat & DPF Delete w/ Muffler (411034)
Part Number: 411034Mft Part Number: 868M-411034Regular price $520.00 CADUnit price
Mel's Manufacturing
2021-2023 EcoDiesel Wrangler 3" Downpipe Back w/ Muffler (361004)
Part Number: 361004Regular price $640.00 CADUnit price
Mel's Manufacturing
Universal 5"/ 30" Muffler Replacement Pipe (50230)
Part Number: 50230Regular price $100.10 CADUnit price
Mel's Manufacturing
2016-2019 Nissan Cummins 5" Downpipe Back Exhaust w/ Muffler (541001)
Part Number: 541001Mft Part Number: 678-541001Regular price $1,100.00 CADUnit price
Mel's Manufacturing
2011-2015 Duramax 4" CAT Delete Pipe (431001)
Part Number: 431001Regular price $530.00 CADUnit price
Mel's Manufacturing
2010-2012 Cummins 5" Turboback Dual Exhaust - No Muffler (511012)
Part Number: 511012Mft Part Number: 766-511012Regular price $1,520.00 CADUnit price
Mel's Manufacturing
2008-2010 Powerstroke 5" Downpipe Back Exhaust w / Muffler (521001 / 522001)
Part Number: 521001Mft Part Number: 632NB-521001Regular priceFrom $1,050.00 CADUnit price
Mel's Manufacturing
2008-2010 Powerstroke 4" DPF Back Exhaust System No Muffler (421109)
Part Number: 421109Mft Part Number: 830-421109Regular price $520.00 CADUnit price
Mel's Manufacturing
2010-2012 Cummins 4" Turbo Back Exhaust System w/ Muffler (411015 / 412015)
Part Number: 411015Mft Part Number: 1848-411015Regular priceFrom $910.00 CADUnit price
Mel's Manufacturing
Universal 45° Angle Cut Exhaust Tip 7" Outlet (407015AC)
Part Number: 407015ACRegular price $105.71 CADUnit price
Mel's Manufacturing
2011-2019 Powerstroke 5" Downpipe Back Exhaust - No Muffler (521007 / 522007)
Part Number: 521007Mft Part Number: 653NB-521007Regular priceFrom $890.00 CADUnit price
Mel's Manufacturing
2011-2018 Powerstroke 4" Cat & DPF Delete Pipe (421014 / 422014)
Part Number: 421014Mft Part Number: 857NB-421014Regular priceFrom $430.00 CADUnit price
