2017-2019 Duramax 5" Downpipe Back Exhaust - No Muffler (FLO-680NM)

Flo-Pro

Part Number: FLO-680NM Mfr Part Number: 680NM-531010
$910.00 CAD
2017-2019 Duramax 5" Downpipe Back Exhaust - No Muffler (FLO-680NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-680NM-Dirty Diesel Customs
2017-2019 Duramax 5" Downpipe Back Exhaust - No Muffler (FLO-680NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS680NM-Dirty Diesel Customs

Material:Aluminized Steel
Quantity:
These cannot be shipped to the USA. Learn more
We are unable to ship this product to P.O. boxes Learn more
FLO-PRO has transitioned to Mels MFG, click here to learn more

Fits

 Year Make Engine
2017-2019
 GM L5P 6.6L Duramax & 4-Bolt Flange

Flo-Pro Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.

The FLO-680NM By FLO-PRO is a Downpipe-back exhaust system for the 2017-2019 L5P w/ 6.6L Duramax. It's the perfect kit if you're looking to remove all your stock components and replace it with high-performance & high-flow 5" piping. Just like all of Flo-Pro's Exhaust kits, it will come with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you cruise through the installation process. You'll notice fuel mileage improvement, increased torque, improved flow, lower EGT's, and you'll have a much better sounding 6.6L!
Part Number: FLO-680NM
  

QUESTIONS & ANSWERS

Ask a Question

  • This doesn’t include down pipe from turbo does it?

    Unfortunately, no.

  • What’s required for tuning after the exhaust system is installed since DPF and DEF won’t be used?

    You need HP Tuners with CCS Tuning and an unlocked ECM for tuning after installing this exhaust system​.

  • Will this system work on a 2021 GMC crew cab 4wd?

    No.

  • Will this kit work for my 2020 crew cab?

    Yes

  • Is this for crew cab or extended cab?

    This will work with all bed and cab configurations!

  • will this connect to the 3.5 inch mbrp downpipe? The downpipe mentioned has a four bolt flange.

    Yes