SKU: 83195938448

2017-2024 FULLY POLISHED T304 Duramax 6.6 Stainless Steel 5" Exhaust

Sale price$427.50 Regular price$475.00
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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

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Description

2017-2024 FULLY POLISHED T304 Duramax 6.6 Stainless Steel 5" ExhaustAre you a big dog? The best of the best and nothing else for your truck? THIS is the ultimate exhaust for the 2017+ 6. 6 Duramax. T304 Stainless Steel, Fully polished. SEMA ready (no bluetooth drive shafts included). 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

Are you a big dog? The best of the best and nothing else for your truck? THIS is the ultimate exhaust for the 2017+ 6.6 Duramax. T304 Stainless Steel, Fully polished. SEMA ready (no bluetooth drive shafts included).
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
  • T304 Polished 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: 83195938448

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Miguel Quezada
Cuba, US
★★★★★ 5
Great price
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Reviewed in the United States on May 23, 2026
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Alan C
Birmingham, US
★★★★★ 5
Give me a try I don’t think it’ll let you down
This has to be the best oil I ever used. I noticed the difference as soon as I put the oil in and started the engine.! I will continue to use this oil for as long as I own, the vehicle and any future cars I may own or drive! I read 75% of the reviews before purchasing this oil . The only thing I’ve noticed. Anyone who gave it below a five star was because they received used motor oil.. in my opinion I think it was returned after somebody filled it up with their used motor oil and returning it for their money back somehow Amazon put it back on the shelf for resale. So take it for what it’s worth but it’s really great oil.
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Reviewed in the United States on March 24, 2026
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miguel vazquez
Boise, US
★★★★★ 5
Great oil
Won’t use another brand now that I’ve used these guys. Phenomenal brand, noticeable difference in the engine.
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Reviewed in the United States on April 2, 2026
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Carlos G
Grantham, US
★★★★★ 5
Recommended
Excellent quality, a synthetic mixture that I will no longer use another brand for my car. I removed a little noise that I had
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Reviewed in the United States on December 30, 2025
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beachboy
Battle Creek, US
★★★★★ 5
Buy it !
I run this in our 2010 PT Cruiser Classic, you can hear the difference, pricey but worth it, will buy again.
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Reviewed in the United States on May 9, 2026

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