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Description
2020-2024 Duramax 6.6 Stainless Steel 4" Full ExhaustThis is a 4" Downpipe back single exhaust system that compares to the 20141NM or SS20141NM system by FLO PRO and similar systems by MBRP and Jamo for the 2020 2024 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
This is a 4" Downpipe back single exhaust system that compares to the 20141NM or SS20141NM system by FLO-PRO and similar systems by MBRP and Jamo for the 2020-2024 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:
- 4" Downpipe Back Race Exhaust
- No Muffler
- Easy Install
- 409 STAINLESS STEEL - NO CHEAP ALUMINIZED STEEL HERE!!
- Single Side Exit
- 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.
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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
4.6 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Excellent
Format: Paperback
A great book. It’s on the mark! You won’t be disappointed!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
★★★★★ 5
Decree its goodness!
Format: Paperback
A absolute must have. It has taught me so much. I also bought her second one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
★★★★★ 5
A book of Hope
Format: Paperback
This book is life changing! I have bought 2 of them for myself and I continue to buy more as gifts. The declarations in this book draw you close to the truth and teach you to walk in truth. Very uplifting and encouraging. A book of Hope
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 6, 2025
★★★★★ 5
Powerful Little Book
Format: Kindle
I enjoyed this book so much that I have the kindle version and the paperback. Sometimes its hard to pray or I don’t know how to pray but I can grab this book and chose the topic I need in that moment. If I am out an about then I pull it up on the kindle app on the phone or iPad. It can be used daily to start your day. Lady’s she even includes a decree/prayer for energy and to keep our hormones balanced!!! It’s the very first decree/prayer in the book. For the end of the day there are decrees on restful sleep and visions and dreams from God. You can start your day with this book and end your day with it. Anything that pops up during the day that overwhelms you then this book probably has the decree you need in that very moment.
I really enjoy that it is written in such a way that I am not praying alone but praying in agreement with others. Where two or more agree on anything it will be done (paraphrased Matt 18-19) I can almost hear Brenda praying these with me sometimes. There is something very comforting knowing that you are not praying these alone.
This book has also helped/encouraged me to start writing my own scripture base decrees.
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Reviewed in the United States on June 13, 2021
★★★★★ 5
I highly recommend this book. If you aren't sure how to pray a PRAYER for a specific area in your life or a loved ones life. This is the book for you.
Format: Kindle
I rated it 5 stars because thru my whole life there have been situations PRAYER was needed. I didn't know how to word them. I would just say GOD please help or save my family members, pets, friends, neighbors and myself. From death, hurts, harms and from the enemy. I glorify and thank GOD for this book of decrees. There might be about 100 decrees. Each section is the title, the decree Brenda and others prayed for and are anointed by GOD, scripture from bible, then word of encouragement that gives you examples or what to do. In the word of encouragement it tells you how to decree it for yourself. So it's 2 decrees at the same time. The one Brenda an others prayed for and the one you decree yourself in JESUS name. AMEN. Remember where more than one pray for the same thing, believe it and it's ours. I will continue to read a few each day. It fills my soul with cheer and joy. GOD bless you. GOD is good. He created this decree book thru his servant for me and others who might need guidance in how to pray and decree.
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Reviewed in the United States on January 6, 2021
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