GM Duramax

The Flo~Pro 5" Downpipe Back Single Exhaust is a direct-fit exhaust upgrade built specifically for the 2007.5-2010 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help lower...

The Flo~Pro 5" Downpipe Back Single Exhaust is a direct-fit exhaust upgrade built specifically for the 2011-2015 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help lower...

The Flo~Pro 5" Downpipe Back Single Exhaust is a direct-fit exhaust upgrade built specifically for the 2015.5-2016 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help lower...

The Flo~Pro 5" Downpipe Back Single Exhaust is a direct-fit exhaust upgrade built specifically for the 2017-2019 Chevy/GMC 2500HD/3500HD 6.6L Duramax L5P. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help...

The Flo~Pro 5" Downpipe Back Dual Exhaust is a direct-fit exhaust upgrade built specifically for the 2011-2015 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help lower...

The Flo~Pro 5" Downpipe Back Dual Exhaust is a direct-fit exhaust upgrade built specifically for the 2015.5-2016 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help lower...

The Flo~Pro 5" Downpipe Back Dual Exhaust is a direct-fit exhaust upgrade built specifically for the 2017-2019 Chevy/GMC 2500HD/3500HD 6.6L Duramax L5P. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help...

The Flo~Pro 5" Downpipe Back Single Exhaust is a direct-fit exhaust upgrade built specifically for the 2020-2026 Chevy/GMC 2500HD/3500HD 6.6L Duramax L5P. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help...

The Flo~Pro 5" DPF Back Single Exhaust is a direct-fit exhaust upgrade built specifically for the 2007.5-2010 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help lower...

The Flo~Pro 5" Downpipe Back Single Exhaust is a direct-fit exhaust upgrade built specifically for the 2001-2004.5 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 5" flow path to help lower...

The Flo~Pro 3.5" Turbo Direct Pipe is a direct-fit exhaust upgrade built specifically for the 2017-2026 Chevy/GMC 6.6L Duramax L5P. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 3.5" flow path to help lower EGTs,...

The Flo~Pro 4" DPF Race Pipe is a direct-fit exhaust upgrade built specifically for the 2007.5-2010 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Fabricated in Alberta, Canada from U.S.-sourced heavy-gauge steel tubing, it replaces restrictive factory piping with a full 4" flow path to help lower EGTs,...

The Flo~Pro EGR Cooler Upgrade Kit for the 2004-2005 Chevy/GMC 2500HD/3500HD 6.6L Duramax LLY is a complete, precision-engineered kit that removes the factory EGR system and simplifies the engine's intake and cooling layout. It addresses one of the most failure-prone systems on modern diesel...

The Flo~Pro EGR Cooler Upgrade Kit for the 2011-2015 Chevy/GMC 2500HD/3500HD 6.6L Duramax LML is a complete, precision-engineered kit that removes the factory EGR system and simplifies the engine's intake and cooling layout. It addresses one of the most failure-prone systems on modern diesel...

The Flo~Pro EGR Cooler Upgrade Kit with Up-Pipe for the 2011-2016 Chevy/GMC 2500HD/3500HD 6.6L Duramax LML is a complete, precision-engineered kit that removes the factory EGR system and simplifies the engine's intake and cooling layout. It addresses one of the most failure-prone systems on...

The Flo~Pro EGR Cooler Upgrade Kit for the 2006-2007 Chevy/GMC 2500HD/3500HD 6.6L Duramax LBZ is a complete, precision-engineered kit that removes the factory EGR system and simplifies the engine's intake and cooling layout. It addresses one of the most failure-prone systems on modern diesel...

The Flo~Pro EGR Cooler Upgrade Kit for the 2007-2010 Chevy/GMC 2500HD/3500HD 6.6L Duramax LMM is a complete, precision-engineered kit that removes the factory EGR system and simplifies the engine's intake and cooling layout. It addresses one of the most failure-prone systems on modern diesel...

The Flo~Pro EGR Cooler Upgrade Kit for the 2017-2026 Chevy/GMC 2500HD/3500HD 6.6L Duramax L5P is a complete, precision-engineered kit that removes the factory EGR system and simplifies the engine's intake and cooling layout. It addresses one of the most failure-prone systems on modern diesel...

The Flo~Pro EGR Cooler Upgrade Kit for the 2020-2025 Chevy/GMC Silverado 1500/Sierra 1500 3.0L Duramax is a complete, precision-engineered kit that removes the factory EGR system and simplifies the engine's intake and cooling layout. It addresses one of the most failure-prone systems on modern...

The Flo~Pro Passenger-Side Up-Pipe with Gaskets is a direct-fit replacement for the factory up-pipe on the 2001-2016 Chevy/GMC 2500HD/3500HD 6.6L Duramax. Factory up-pipes are a common source of exhaust leaks that cost turbo spool and drive up EGTs; this heavy-duty Canadian-made replacement is built...