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

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Awesome fast shipping

Mike

Bumpus

Very pleased with it, customer service was great with any questions, only issues I had was that electrical connector plugs were not available along with a better option for switch that would of had a direct connector without splicing. Thanks

Rich

Harris

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

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

good tunner worked the way they said.

Bat

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

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

The kit works great. The DPF and DEF deletion pipes fit perfectly. The EGR Kit had everything I needed and the RaceME Ultra was easy to install. The way the truck runs now is awesome, The horsepower and fuel mileage was exactly what I was looking for. The fuel mileage on my 2017 Dodge with the 6.7 cummins with from 15-16 MPG to 24-26 MPG on the highway and from 11-12 to 18-19 in town. I'm extremely happy with my purchase. Thank you.

Dave

Peevey

Yes really good love it

Juan

Bravo

Great!!!

Doug

Candler

Hats off to diesel lion. I purchased my 6.7 ford tuner approximately three weeks ago I received my tuner within three days of ordering, which was fantastic. Wasn’t expecting it for a week to a week and a half. when I received it, I opened up the box to see what came with it and noticed the gauge wasn’t in the box was planning to put it on the upcoming weekend was very disappointed at the time. I thought I was gonna have a heck of a time trying to get a hold of them and resolve the issue I first called them no answer then email them got an answer with an hour after hours. I sent them photos of what I received in the box and the person that have been talking to said he would send me one out, I thought well it’ll be another week or two before I received it. I got it within two days again very very happy with their response and concern they sent me a whole new unit very appreciative to diesel lion the way they handled it very very happy with them. Long story short if you need to order tuners or anything and need good service order from diesel lion they will take care of you. Thank you again diesel lion. If there’s anything else I need I will definitely order through them. Thanks again Cardel Howell.

Cardel Howell

Howell

Good service prompt delivery!

R

Bersano

Well let's just start this out by saying I have a 16 ram 6.7 and I ordered the ezlynk with the LION package shipping was very fast and everything was complete I deleted my rig it took a complete weekend because we had a little hiccup with the ezlynk not hooked to a technician but as soon as GDP opened the problem was completely fixed the five position switch was perfect and everything functions great the tip for the 5in exhaust is completely over the top but as a dump would look great I'm very pleased with the tunes just took my camper on a 80 mile journey and have ZERO complaints now the truck is a beast I highly suggest you go with DIESEL LION for the simple fact that it was very easy to install and use ...... on a side not I do also recommend headstuds!!!! Definitely worth it THANK YOU DIESELLION.COM for everything I will be sending business your way with all my friends

Casey

S

Ok. We did the download from your email. TRUCK RUNS GREAT!!! THANK YOU!!!

Michael

Everything went good on the install

BJ

Putman

Very helpt and really like the quick reply's to any question I had Thanks

Steve

Jones

Yes very happy with both my orders

Nicholas

Estes

Everything I needed was in the kit I was very happy with Everything except the shift on the fly selector. I spent 2 hours installing it in a very inconspicuous location. After I installed it we could not get the proper voltage reading for it to work correctly with my truck. So now I have it still mounted in my truck but I had to unhook it so it was a $150 item that I won't be able to use. But everything else worked very well and I am pleased with the outcome of the installation. Thank you for your products. Will be purchasing more form your company in the future

Bobby

Holt

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

Greg

Borgman

Excellent service and parts... Fast shipping!

Jonathan

Coo

Everything worked out perfect, instruction very accurate

Cruz

Tovar

Initially hesitant about deleting, I found that it turned out to be the best thing I could have done. As a result, I no longer experience exhaust service lights, and there is no lagging when I step on the accelerator. Additionally, I have noticed an increase in fuel mileage.

Adam

B

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

I'm very impressed by the sound and power it makes when I get on the throttle(WOW😁)

Eddie

B

You nailed it, great products and a great price!

Jeremy

White

Great product and super nice customer service

David

Hancock

Worked great, will use again if needed!!

Dale

Cagley

If I could give you guys a 10-star review I would I've also reached out to a lot of my friends that also drive diesels and forwarding your guys's information to them so that they can purchase the delete kits also a couple of my friends have fleets of trucks so they will be in contact I appreciate you guys thanks for being awesome

Ian

Lewis

Hey, it all went well the freezer did the trick (on mm3), it all went back to stock and then everything loaded on. It's awesome, I am very happy truck runs like a dream transmission is buttery soft. Very impressed. Thanks for all your help and good service ií will definitely recommend you to my friends. Thank you again

Paul Morgan

Lawrence

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

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

Michael

Gilbert

Great!

Don

Peters

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

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

Install went awesome, instructions were good and everything went smoother than expected. Thank you.

Anonymous

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

Jeff

Wooton

Awesome company, great products/tunes!! Very fast customer service!

Brock

M

I love all my products and my truck runs great

George

House

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

Chris

Taunton

It is amazing! Truck runs like a dream!

Luis

Morato

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

Awesome parts and shipping

Dan

Tompkins

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

Did exactly what it is meant to do... go me back on the road w increased efficiency! Beyond happy with the tuner and it's ability to monitor drivetrain functions while in use! Worth every penny!!

Baros

Great! Thanks!

Goat

Snob

Works great thank you so much 5 stars

Jamie

Moore

You guys are great! ")

Betty

Sutherland

The products that I bought from your company are outstanding and your customer service is second to none thank you for all of your help. I will recommend your company to everyone. THANK YOU VERY MUCH YOU GUYS ARE AWESOME

James

Milburn

So far it has done great!!!! Not hard to install

Darin

Ladlie

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

I am very pleased with everything purchased from here. All went smooth with no installation issues. Thank you for making my truck awesome!

Gary

Morrison

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

Everything worked perfect, on time, and you even answered an email overnight!!! You got my 5 Stars guys!!! 👍 Thanks for a great product!

Jeff

Delk

Hey guys just a shout to you all! Thanks for supplying us with another great kit. Everything went together perfectly and the tuning is awesome! Thank you for another great experience!

Brandyn

Reinf

Works awesome. Thanks I appreciate you.

Don

Allison

Just finished my tuner and I love it. I I appreciate the quick shipping and great customer service u provided. Everything fit perfectly and was easy to do. I give ya 5 stars no doubt!

Anthony Jackson

Jackson

So I had a special case. I needed a tune for a 2008 C5500 Duramax. This is obviously a commercial truck. They were able to send me the handheld. My mechanic downloaded the parameters from the truck. He sent them off. I had a custom tune back in 2 days. The truck now runs great. Thanks to Dyno Diesels for a custom tune. When our government is doing everything they can to ruin diesels. Dyno has your back.

Roman

Parsons

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

Everything was handeld very well and all the stuffed worked no problem

Chris

Shires

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

Nick

Coley

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

Pascal Pepin

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

Charlie

Clonch

Very happy with my purchase great products thank you and I loved how fast it arrived thanks again

Peter

Rodriguez

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

Ken

Kilby

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

Yes 😊

Darrell

McKittri

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

%100 great service awesome timing on parts!

Jesse

Ward

Great kit. Truck runs great. I went from 16.2 highway mpg to 19.9 highway mpg. The kit did not substantially increase exhaust noise, the truck is still quiet for a diesel. I am very pleased. I can now go down to grand isle fishing and not have to worry about my truck saying in 50miles your truck will only go 50 mpg. What a relief!

Steven

Unkel

I'm really happy with the Ecodiesel delete kit, which comes with an ECM and transmission tune.,My first impressions are really positive.,I installed this kit last weekend and the results have been outstanding in terms of power and fuel efficiency.,My 2016 3.0L Ecodiesel was in bad shape, stuck in 'limp mode' due to an electronic throttle fault and a DPF that was completely full.,The dealer wanted to charge me over $3,000 to replace the DPF filter, but I decided to do the installation myself.,While it was a tough process, it was definitely worth the effort.,After completing the hardware installation, I cleared the engine codes and downloaded the ECM/transmission tunes.,I went for the 40hp tune, and I can really feel the difference - there's better throttle response and a 2mpg improvement on rural roads so far.,We'll have to wait and see about the long-term durability, but I'll definitely update if I run into any issues.,Overall, I'm really pleased with the product, the instructions, and the customer support.

Don

B

Perfect I love it

Jose Ramos

Cortez Lopez

Works great nice setup

Cristian

Larios

Happy

Karl

Patay

This kit was the best thing for my truck it like a brand new truck run so good an is bad ass fast now thanks again for great kit an service

Jeff

Watkins

It was easy and it makes the truck run better

Chris

Lagorga

Yall did great! Fast service and overall great experience!

Travis

Puryear

Kit was great so far 5" was very tight at the down pipe had to bend it on frame side. And had to weld up the clamps that hold exhaust together they were a little chincy other than that no complaints at all.

Jeramie

Speck

Everything in the kit ordered worked great! I am a happy customer and will likely purchase again!! Thanks for the great products. Thank you for your time.

Tony

Russ

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

Sun

Man

A highly recommended group of people. WIlling to help on what would normally be out of business hours. I'll be coming back for their help in the future.

David

Finn

5 star best of the best

Tryhard

Could have been better on shipping notifications on tracking numbers. I had to keep on the situation of my order by constantly emailing for tracking#'s but I finally got my products and I am very happy with the end result.

Chris

Click

Everything worked out perfectly. Super happy.

Rian

Mckinnon

Thanks y'all Done great

John

Rodge

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

Packages arrived and in good shape. When I had any questions someone would follow up with an answer. My RaceMe Ultra was easy to install and had no problem with the EGR delete kit. I did have a problem with my pipes due to the bend in the pipe that replaces the muffler. Only 2 ways I could put it. The bend up or down would not let me hook up my hanger mounts for support.

Geoffrey

Rose

Works as it should. Quick shipping

Chris

Quacken

You did very well thank you so much.

Terry

Conk

The product was exactly as pictured and was what was expected. The shipping was late and I paid $350 for overnight shipping and it ended up being two days and I still had to go pick it up from the shipper (FedEx).

Tyler

Cline

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 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

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

Valentin

Robl

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

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

Ron

Pontius

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

You did a great job 🤙

Oliver

Large

Installation for exhaust was pretty straightforward. Internet connection is slow where I live, so download of the tune was pretty time consuming. Also had to take off my dashboard to access unlock location for ECU. On the upside, easily added 3mpg - sometimes a little better when taking it easy. Amazing to get almost 30mpg (sometimes low 30's) out of a 1/2 ton pickup truck.

Jeffrey

Burns

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

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