2011-2015 Duramax 5" Downpipe Back Exhaust - No Muffler (FLO 664NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-664NM-Dirty Diesel Customs
2011-2015 Duramax 5" Downpipe Back Exhaust - No Muffler (FLO 664NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-SS664NM-Dirty Diesel Customs

2011-2015 Duramax 5" Downpipe Back Exhaust - No Muffler (FLO 664NM)

Flo-Pro

Part Number: FLO-664NM Mfr Part Number: 664NM-531006
$910.00 CAD
Material:Aluminized
Quantity:
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Addons

 

Fits

 Year Make Engine
2011-2015
 GM
 6.6L Duramax w/ V-band flange at Downpipe
 
Flo-Pro Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.
  
The FLO-664NM is a 5" Downpipe-Back Exhaust System by FLO-PRO for the 2011-2015 6.6L Duramax. It's the perfect kit if you're looking to remove your stock components and replace it with high-performance & high-flow 5" piping from the Downpipe back! 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, and you'll have a much better sounding 6.6L!
 
Part Number: FLO 664NM
    

QUESTIONS & ANSWERS

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  • Will this fit my 2013 Duramax Dually 4 door 8 ft box?

    Yes, this exhaust will fit all 2011-2015 LML Extended Cab & Crew Cab trucks with a Short Bed, Long Bed, & Dually box configuration.