SKU: 1319662704

2017-2019 Duramax 6.6 Stainless Steel 5" Full Exhaust

$270.90 $301.00
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  • USA
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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

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Description

2017-2019 Duramax 6.6 Stainless Steel 5" Full ExhaustThis is a 5" Downpipe back single exhaust system that compares to the 680NM or SS680NM system by FLO PRO and similar systems by MBRP and Jamo for the 2017 2019 6. 6L, 2500 3500 W OEM 4 BOLT FLANGE EC CC SB LB DUALLY, PICKUP ONLY. This kit allows you to remove the restrictive OE exhaust system, it will open up your exhaust system and lower your EGTs. This exhaust system does not include a muffler and is intended for race trucks only. Comes with all the

This is a 5" Downpipe back single exhaust system that compares to the 680NM or SS680NM system by FLO-PRO and similar systems by MBRP and Jamo for the 2017-2019 6.6L, 2500/3500 W/ OEM 4-BOLT FLANGE EC-CC/SB-LB-DUALLY, PICKUP ONLY. This kit allows you to remove the restrictive OE exhaust system, it will open up your exhaust system and lower your EGTs. This exhaust system does not include a muffler and is intended for race trucks only. Comes with all the required clamps, pre-weld contour bent hangers, and stronger flanges to help you cruise through the installation process. This kit not only sounds great, but will improve fuel mileage, throttle response, and torque in your 6.6L.
  

Features:

  • 5" Downpipe Back Race Exhaust
  • No Muffler
  • Easy Install
  • STAINLESS STEEL - NO CHEAP ALUMINIZED STEEL HERE!!
  • Single Side Exit
  • All cab size and bed length configurations
  • This exhaust is designed to work with our aftermarket downpipe available HERE 

  • Exhaust will work with most other aftermarket downpipes and may work with OEM downpipe, but again, it is designed to work with our downpipe for guaranteed fitment.

Manufactured by ProPower Diesel in the USA.

IMPORTANT NOTE
In 2017, GMC made a production change in the connection between the catalytic converter and the turbo direct pipe on the L5P. Please ensure you have the newest 4-bolt style flange before ordering.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1319662704

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4.8 ★★★★★
Based on 14 reviews
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Product Reviews
R
Verified Purchase
R. Lieberum
Carnegie, US
★★★★★ 5
Engine Air Filter
Size: (Pack of 1)
This engine air filter fit perfectly in my 2018 Honda CR-V. No idea how it will perform but so far the Check Engine Light has not come on since installing the filter. Since there have been no problems I am happy with this filter and will likely buy again in the future. The filter does appear to be made from quality materials.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
K
Verified Purchase
Khan_Family
Chelsea, US
★★★★★ 5
I love eco guard engine and air filter
Size: (Pack of 1)
Great price with good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
M
Verified Purchase
M. Tibbetts
Fort Morgan, US
★★★★★ 4
My mileage on my 2021 Honda CRV dropped 4 miles /gallon with this air filter.
Size: (Pack of 1)
My mileage on my 2021 Honda CRV dropped 4 miles /gallon with this air filter. It did fit well and was easy to install, but then I watched my average around town mileage drop from 29-31mpg to 26-27 mpg thru 2 tank fillups. The Honda repair person said this filter looked like the Honda one and was surprised when we wanted to switch it out. Granted, it looked just like the Honda filter, but the folds on the Honda one are yellowish and I have to think there has to be some difference in the texture. The average mileage went back up within 10 miles of replacing it and 3 fill ups later it has continuously maintained its original average of 29-31 with the Honda filter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2024
R
Verified Purchase
Randy Shiverdecker
Lowell, US
★★★★★ 5
As good as Original Manufacturer Equipment.
Size: (Pack of 1)
Cheaper than having the dealer or oil change store do it. Only takes a minute to replace your existing filter for a lot less than what they want to charge you. High quality too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
E
Verified Purchase
Emmanuel C.
West Palm Beach, US
★★★★★ 5
Excellent Honda Alternative
Size: (Pack of 1)
I try to get everything and to keep everything as a manufacturer original on a car as possible. I will say that this filter is just as good as the Honda. The installation was very simple, you just need a screw driver to unscrew the 4 screws in the air box and this sits right in. The engine ran better and immediately got so much better MPG. I did not notice the engine struggling for air at all, if anything the car ran better. The fitment was the same size and just as good as the Honda. P.S Don't be like me. Don't hesitate to buy it. You'll love it. No questions asked!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 31, 2025

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