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CAT Back Duals
Improve the Look Sinister Diesel’s has Cat Back dual exhaust kits for your Powerstroke, Cummins, or Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we...More Details »
CAT Back Duals for Duramax
Improve the Look Sinister Diesel’s has Cat Back dual exhaust kits for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we have exactly what you are...More Details »
CAT Back Single
Improve the Look Sinister Diesel’s has Cat Back single exhaust kits for your Powerstroke, Cummins, or Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we...More Details »
CAT Back Single for Duramax
Improve the Look Sinister Diesel’s has Cat Back single exhaust kits for your Duramax diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we have exactly what you...More Details »
Down Pipes
Improve the Look Sinister Diesel’s has exhaust down pipes for your Powerstroke, Duramax, or Cummins exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have...More Details »
Down Pipes for Powerstroke
Improve the Look Sinister Diesel’s has exhaust down pipes for your Powerstroke's exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly what you are...More Details »
DPF Back Duals
Improve the Look Sinister Diesel’s has DPF back dual exhaust for your Powerstroke, Duramax, or Cummins diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5”...More Details »
DPF Back Duals for Cummins
Improve the Look Sinister Diesel’s has DPF back dual exhaust for your Cummins diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly what...More Details »
DPF Back Duals for Duramax
Improve the Look Sinister Diesel’s has DPF back dual exhaust for your Duramax diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly what...More Details »
DPF Back Duals for Powerstroke
Improve the Look Sinister Diesel’s has DPF back dual exhaust for your Powerstroke diesel’s exhaust. Whether you prefer stainless or aluminized steel, 4” or 5” diameter, we have exactly...More Details »
DPF Back Single
Improve the Look Sinister Diesel’s has DPF Back single exhaust kits for your Powerstroke, Duramax, or Cummins diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we...More Details »
DPF Back Single for Cummins
Improve the Look Sinister Diesel’s has DPF Back single exhaust kits for your Cummins diesel. Whether you prefer stainless or aluminized steel, 4” or 5” exhaust, we have exactly what you...More Details »
Items 1-12 of 20

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Items 1-65 of 65

More About Flo-Pro Exhaust

We make our exhaust systems stronger where they need to be the strongest with machined turbo flanges. Most of our systems come with a machined flange that matches perfectly to your stock or aftermarket turbo. The alternative construction of a turbo flange is to over expand the pipe and flare it out. We used to do that, but that process created a weak spot in the 16ga steel and often had to replace downpipes for damages caused by stress and vibrations off the turbo. If you order a FLO~PRO kit, your turbo clamp will thank you!