Exhaust Manifold Kit w/ Up-Pipes (2001-2016 Duramax 6.6L LB7/LLY/LBZ/LMM/LML)

2001-2016 Duramax

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No installation manuals available for this product at this time. Request a manual here.
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Product Information

Product Description

Transform the performance of your 2001-2016 Duramax 6.6L engine with the DIESELR Exhaust Manifold Kit w/ Up-Pipes. Built to handle the toughest conditions and maximize exhaust flow, this kit is designed for drivers who demand more power, better efficiency, and unparalleled reliability from their diesel engine.

Constructed from heavy-duty materials, the Diesel Lion manifolds and up-pipes are engineered to withstand extreme temperatures and high stress, providing a significant upgrade over restrictive factory components. The improved design minimizes backpressure and enhances exhaust flow, resulting in quicker turbo spool-up, lower EGTs (exhaust gas temperatures), and a noticeable boost in horsepower and torque.

This comprehensive kit includes high-flow exhaust manifolds and thick-walled up-pipes, designed to work together seamlessly for a perfect fit. Whether you're towing, racing, or just want the best for your truck, this kit is your ultimate solution for improved performance and longevity.

Features:

  • High-Flow Exhaust Manifolds: Optimized to reduce backpressure and maximize exhaust flow, enhancing power and efficiency.
  • Thick-Walled Up-Pipes: Built to resist cracking and handle high-heat environments, providing reliable performance under load.
  • Durable Construction: Made from premium materials to withstand the toughest conditions and ensure long-lasting use.
  • Complete Kit: Includes both manifolds up-pipes, hardware and gaskets, designed for a direct fit and hassle-free installation on all 2001-2016 Duramax 6.6L models.

Unlock the full potential of your Duramax with the Diesel Lion Exhaust Manifold Kit w/ Up-Pipes and experience the difference in performance, durability, and reliability every time you hit the road.

 

Powerlevel Options

Product Compatibility

Chevy / GMC
Duramax
2001-2004 LB7
Chevy / GMC
Duramax
2004.5-2006 LLY
Chevy / GMC
Duramax
2006.5-2007 LBZ
Chevy / GMC
Duramax
2007.5-2010 LMM
Chevy / GMC
Duramax
2011-2015 LML
Chevy / GMC
Duramax
2015.5-2016 LML

Other Information and Resources

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It was great so far so good 👍

Robert

Stuart

I am extremely happy with my product I ordered. Easy installation and everything was well packaged.

Ray

Moyer

Very happy with everything 5 stars

Kelly

Hatfield

Thanks for selling these kits! My truck runs like a champ. It was super easy to update the SCT and flash the ECU. I was a little worried but there was good instructions!

Angel

Proven

EGR kid was a breeze, for me at least. Everything I needed was in the kit. Only thing I want to say to help for future kits, is that the gasket for the intake neck/tube, it was bent and on the verge of tearing. I was able to reuse the original one on my truck since it is a very low mileage truck. Otherwise, thank you and hope I can find something on your website I can use!

Anthony

Bran

My order was shipped right out and I received it quickly. I am very pleased with your service and product. 5 stars!

Chris

Paul

2016-2019 GMC & CHEVY Colorado & Canyon Duramax | EGR DPF DEF DELETE KIT very nice for both kits i bought you guys, my business will be a returning customer for sure. also very fast shipping awesome Nick Therrien, owner Larocque, Valleyfield, J6T 4c8, QC

Nick

Therrien

Great products and lots of good assistance with the purchase!!! Thanks!!!

Ray

Chaple

Your service was awesome, I was amazed how fast my order was shipped and the customer representative was very helpful. Thanks again, Steve in Colorado

Steven

Allard

The best product and excellent customer service!

Jeff

Boudreau

Awesome products at an amazing price. Everything was so simple to install and program. I would highly recommend your product to everyone

Charlie

Clonch

Great everything worked perfectly!

Dave

Skibinski

The product worked perfectly, solved all my problems. Thank you.

Michael

Gilbert

I love all my products and my truck runs great

George

House

Everything I have ordered so far has installed and functioned without fail. Shipping has been prompt. Customer service has been knowledgeable. I would recommend these products.

Joe

Murphy

Great customer support!

Javier

Hernandez

I am really like y'all customers Servies Very helpful.

Rodrigo

Luna

Ordering process was great and everything arrived quickly and intact. The GDP tunes seem decent although there is some smoke on level 1 where I wouldn't think there would be any. Overall very satisfied with the product.

C

Gilliam

I am wicked happy with the kit I received. I was proud that I was able to do the installation.

Clifford

Camp

I'm so happy with the parts and I'll definitely keep buying them for you guys. Thank you.

Nestor

Bueno

Great product will be ordering more very soon!

Jaron

Hastings

Thank you all for help and support everything is on truck is running fine and upgraded to the hot and cold intake fuel mileage is so much better went from 9.7 pulling my skid loader to 14.8

Jerry

Polston

Instructions would be awesome. But overall very happy with products performance

Kyle

Roose

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

Exactly what I needed and wanted.

David

Murphy

Yes very happy with all your service. Thanks

Wayne

Hucke

Incredibly happy runs way better mileage increased and muffler with 4" exhaust is perfect. Thanks again

Anthony

Guilian

The kit was just what I needed. The only thing is there one of the hose connections that is plastic and should be metal. I swaped it out with a metal one and all is good. Thanks for shipping the kit quickly.

Chad

Loker

I pull a 48ft car hauler with my 2014 Ford 1ton, 5.9mpg and the truck would overheat. Installed the delete kit, no more overheating 12.8mpg. AWESOME THANKS

Bryan

Aaron

A PLUS. Everything was perfect. Tunes work as they should. Drivability is better than factory programming. Very happy and will buy from again.

Keith

Weston

These guy(s) are great! Knowledgeable, friendly, helpful. Highly recommended.

Ken

Kilby

EFI Live easy to work with! fast shipping! Thank you

CHRIS

SWAIN

Great company to work with. I had a problem with my order and they took care of it right away. I would recommend them to all my friends.

Dave

S

Truck runs great thank yall

Fabian

Benavi

The kit was fantastic. My stage 2 tow tune is a good tune.

Jeff

Wooton

Yall did great! Fast service and overall great experience!

Travis

Puryear

I like it, the install wasn't too bad. Wish it would've came with instructions, that would make it a lot better.

Marcus

Moore

Everything fit and is working very well. Order was delivered faster than expected. Would recommend this kit to others.

Marland

King

I really appreciate all the help. I super excited to get the products installed on my truck. You guys are awesome with the quick turn around on the products and customer service.

Jesse

Di Lella

Easy to install, great service, the mini max is working great. Thank you!

Pascal Pepin

Had my tunes and auto agent for about a month now. Super happy with results and wow was the my tuner delivered FAST, practically next day thru FedEx.

Jorge

Torres

Great product and super nice customer service

David

Hancock

Hello, your kit worked awesome. No issues at all. Truck runs great. Thank you

Sun

Man

Great job as always! Fit perfect and fast shipping! Thanks!

Chris

Taunton

I'm very happy with the service and the fast response when I had any questions thank you very much

Eliazar

You guys were great. We had a couple of questions, they were answered. Kit was super nice. Tunes were well tuned. Good company to deal with. We will be ordering our deletes from here.

Austin

Euro

Thank you, you guys were great to work with and my order came 2 days before I thought it was.. I will definitely use you guys again thanks again

Ted

Perry

I would just like to say thank you for such a great system your team sold me. I had everything I needed and made this kit installation go very smoothly. I was very nervous going into this, my boys kept telling me it will be fine. The Agent 3 device was such an easy install it was crazy. Everything connected very easily and meshed well with my Banks equipment I added with it. When I have heard folks say it will wake up your truck, I had no idea until I started driving it. Completely different truck. Thank you for supporting this equipment and making this high value upgrade a smooth one. I definitely am spreading your name out there.

Gary

Morrison

Everything went well. Took me 4 hours to complete, solo. Only gripe I could have (which I don't) would be the lack of instructions for the bracket that bolts to the exhaust. Took me a while to figure that out as the instructions showed a different set up. Preciate the kit. Have recommended to other folks.

Cordy

DD

I'm waiting on the rest of the stuff but the employee or employees I've been dealing with have been super kind and helpful. Thanks

Tom

Fern

I just finished installing the RaceME Ultra and complete EGR, exhaust system kit. This woke my truck up like never before and it runs great. Technical support was a great help and Michael answered all my questions in a timely manner. Looking forward to many miles with no check engine lights. Thanks again for all your help.

Doug

Miller

Works awesome. Thanks I appreciate you.

Don

Allison

Thank you this worked it was file E! Tunes are great

Nick

Coley

19% Better MPG. Sounds like a REAL diesel. Great communication.

Will

S

Exactly as described. I love it my miles per gallon on the highway or approximately 25 miles per gallon now at 78 miles an hour on cruise on level ground. Very happy. Not to mention all the extra horses

Jerry

MCcool

Truck runs great now. Thank you.

James

Vournas

Truck runs like a scalded dog! Had issue with muffler not being sent with original order and had to switch to EZ link tuner. Other than than N that, very pleased

Carlos

Martinez

Thanks y'all Done great

John

Rodge

Everything works great and the whole process was much more simple than I expected. I will definitely be recommending you to others. Thank you!

Brent

Kramer

I am stoked! Thank you ALL for being a part of the solution. It burns me up to know the amount of great engines out there being ruined by the ridiculous laws and science being forced on great Diesel engines. No doubt about it, there are less than a handful of un-needed factories blowing more pollution into the world than ALL of the diesel engines combined. Thank you again for all you do! God speed.

Mike

Thompson

It is amazing! Truck runs like a dream!

Luis

Morato

Will give these guys a 5 star plus! Thanks for the discount and quick shipping. Highly recommended.

Neil

Mayes

Product was great. Easy installation. Great improvement over stock.

Ron

Pontius

I am very pleased with my purchase!! The only thing I wish I would have got was the pyro that goes with it. I'm saving now so I can purchase that in the near future. Thank you so much!

Mark

Lujan

Thanks for the promoptly sending my order. Everything fit great. I'm totally satisfied!! Thanks again!

Darrell

Blackw

Worked great, will use again if needed!!

Dale

Cagley

Happy

Karl

Patay

yes working good so far

Steve

Noriega

Very satisfied with the results of the Tow Haul tune, good service and fast shipping. I do however like talking to someone on the phone more than communication thru email. (I'm just a little old school I guess)

Mike

Moyers

Great product, had everything I needed. Installation went great, got it all done myself in my garage in about 6 hours. Truck runs awesome with engine and trans tunes.

Andy

Kosevich

So far exactly what I want to achieve, smooth, no surging, trans is solid. The delay between the 3rd and 4th is a bit long. I was hoping for an earlier shift.

Mike

G

Very happy with the kit, everything fits and performs well.

Joe

Murphy

You guys are lifesavers , everything thing went together perfectly, runs and shifts better than ever and it was delivered the same day I ordered it. You gained a loyal customer and I appreciate the entire process, thanks again

James

Crimm

I received my order quickly and it was very easily installed. I was given the wrong tunes for my vehicle but it was resolved in less than 24 hours!

Brett

Nichols

Works great thank you so much 5 stars

Jamie

Moore

The service that was provided was phenomenal. Couldn't have asked for better service. Placed my order and arrived on a timely manner taken into account I live in Louisiana. Truck sounds great. Thanks again.

Josh

H

Great!!!

Doug

Candler

Excellent customer service and the process was pretty simple overall (lots of wrenching but so worth it!). We are ecstatic with the improved performance of the truck. Tuner is excellent and easy to understand!

Dianne

Brooks

The best customer service in the business!!!!

Brock

Maxwell

Awesome! Install wasn't too bad on 2017 Ecodiesel Ram 1500. Truck is much more responsive and should last longer now that I am no longer spewing carbon into my intake manifold.

Daniel

Johnson

Wow what a difference should have installed a raceme ultra years ago. Truck runs great

Paul

Erickson

Fast shipping and good fitment

Mitchell

White

Exhaust came in on Tuesday. Well packaged and perfect box. Got the truck completely done today. Slow day at the shop so I got it all done. I want expecting that much power honestly. What a difference. Already 3.5mpg better. Truck is a monster now. Shocked really. Sounds sick too!!!! Thank you guys for the product, communication. Perfect. It's like a new truck.

Harrison

Lansdale

Excellent!!!!! Everything worked out perfect

Mitchel

Johnson

Yes 😊

Darrell

McKittri

The truck is running pretty good now thanks to your tunes and email help. I ran the 60hp tune for a few days then loaded the 100hp. Ran a tranny learn session out on the interstate immediately after the flash. Truck runs better on the 100hp than the 60hp tune in my opinion. No rolling coal, just a little "coal dust" when accelerating. The mileage is fantastic compared to what it was getting before the turbo replacement and tuning. It was 13-14 mpg before the swap. Now running the 100hp tune, I'm getting 21-22mpg. Unbelievable! On a fresh refuel, I reset the mpg display on the truck. The first 125 miles saw 22.5 mpg! After five days of mixed driving, it was still holding 21.8 mpg. Now, the big question is: How accurate or valid is the PCM calculation and display? Who care? Before it was reading 13-14 m mpg. Now it's showing 21.8 mpg. That makes me happy and that a good thing. I will run a manual calculation when I refuel again in a few days to cross check. Thanks again for your help and patience.

Ken

Kilby

The kit was great and super easy to install. I didn't see the transmission tune.

Ralph

Franks

finally got it done. amazing power difference and I think the fuel economy will be better when I get through playing with it.

Clayton

Keenan

5 Stars!

Daniel

Johnson

Very pleased with everything I got everything went pretty smoothly and is working great! Thank you guys! Would definitely shop again or suggest to others. Only complaint is on the 5-in downpipe it is a rather tight fit and kind of touches the frame there maybe a slight Factory dent or something

Jude

Gray

Very nice, everything was on time and how it supposed to be thanks guys

Valentin

Robl

THANK YOU!

Shane

Yes I was very happy.

Lewis

Drywall

Everything went good on the install

BJ

Putman

I am more than happy with it. I have completed the DPF removal and straight pipen install. I have not removed the EGR. I can say that I have picked up more power and 3 more mpg towing. I have an 8k pound bumer pull camper. There is a little black smoke when I punch it; none if I drive "normal". My wife said it is louder, who asked her. I have been on the fence but your price and the extra $100 off, with free shipping was the factor. Thanks for the entire process from ordering to installation videos.

Scott

Stribling

Works great nice setup

Cristian

Larios

It was easy and it makes the truck run better

Chris

Lagorga

Did exactly what I wanted.... And would definitely recommend

Greg

Borgman

You did very well thank you so much.

Terry

Conk

Works great for me.

Jeff

McGuffin