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Exhaust

DUAL 5 INCH EXHAUST SYSTEM | 2017-2023 CHEVY/GMC L5P DURAMAX

2017-2019 CHEVY/GMC L5P DURAMAX
USD999.99
USD1,641.00
20 reviews

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Instructions
No installation manuals available for this product at this time. Request a manual here.
Shipping

We offer fast and free reliable shipping for all customers to ensure that you receive your products as soon as possible. Shipping generally takes 3-8 days to transit to you depending on where you're located in the US and Canada. Hawaii, Alaska, and other remote areas may take longer and invoke further shipping expense. Please contact us if you're want more information.

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Product Information

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Product Description

5" Downpipe Back Dual | 2017-2023 GM 2500/3500 6.6L DURAMAX L5P

Description

Constructed out of T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Mel's system. For powerhouse performance, Mel's delivers - horsepower you can hear!

Features:

  • Ease of installation
  • Contour Bent Hangers
  • TorcTite® Clamps
  • 4" Cat Pipe
  • OEM Style 4 Bolt Flange
  • No Bungs
  • Fits Cab/Box Configurations: EC-CC/SB-LB-Dually

 

IMPORTANT NOTE
These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe! 

 These parts are for use on non-registered race vehicles on closed-course competition events *Installing or using this part on any emission-controlled vehicle ("street" or "off-road") may violate federal and/or state emissions laws and regulations.

Powerlevel Options

Product Compatibility

Chevy / GMC
Duramax
2017-2023 L5P/L5D

2017-2019 CHEVY/GMC L5P DURAMAX

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Works great thank you so much 5 stars

Jamie

Moore

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

THIS WORKED AS IT SHOULD-NO PROBLEM INSTALLING -THANKS

Mark

Camarra

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

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

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

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

Eliazar

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

10/10. I had a little mishap with the EGR kit getting shipped but after a late-night email, that was responded to extremely quickly. Customer service top notch. Install quickly and easily. It is a great product and a great company.

Bob

Mcgee

Very happy with everything 5 stars

Kelly

Hatfield

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

Truck is back to running like it should thanks

Johnny

Quarles

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

It was great so far so good 👍

Robert

Stuart

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

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

Small issue with shipping on time but 5 stars

Richard

Parks

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

Peter

Rodriguez

5 stars Fast shipping, quick response to my email, excellent products. Tune loaded quickly with no issues and shifting is smooth with the tow tune but I'm still experimenting. I needed a exhaust that wasn't to noisy and yours a worked perfectly and no leaks from the clamps. I did remove the 4 inches from section of straight pipe to fit my long bed crew cab but that seems to be the norm so the same pipe will fit the long bed mega cab. You were a word of mouth recommendation and I'm glad I remembered the name of your company. Thank you for helping me bring my truck back to life.

Kenneth

Polley

You guys did awesome!!!

Whitney

Schiesser

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

Anonymous

Everything went well. Thank you very much

Tom

Honrath

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

Darin

Ladlie

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

Chris

Paul

Great kit, very satisfied with the quality and performance and your customer support is fantastic, thanks for making the 6.7 run and sound great

Tim

Hans

thanks again the truck runs great went from 27 to 32 mpg

Darwin

Grewe

You did very well thank you so much.

Terry

Conk

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

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

It was easy and it makes the truck run better

Chris

Lagorga

Great feedback with issues with software. Very responsive and helpful. Great customer service for products.

Willimam

Alexander

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

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

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

Rodrigo

Luna

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

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

Yes 😊

Darrell

McKittri

Perfect I love it

Jose Ramos

Cortez Lopez

THANK YOU!

Shane

Absolutely amazing customer service and shipping. Have told several people to do business with you. Couldn't be happier. 5 stars all the way

Philip

Triplett

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

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

The best product and excellent customer service!

Jeff

Boudreau

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

Excellent service and parts... Fast shipping!

Jonathan

Coo

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

Paul

Erickson

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

Ron

Pontius

Installed this kit a week ago so far it has been doing good. Thanks

Shannon

Braun

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

Ray

Chaple

Great!!!

Doug

Candler

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

Chris

Taunton

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

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

Awesome Great job 👏

Jeff

Cooper

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 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

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

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

Thanks y'all Done great

John

Rodge

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

Yes very happy with both my orders

Nicholas

Estes

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

Awesome fast shipping

Mike

Bumpus

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!

Don

Peters

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

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

Great service. Fast shipping. Great product. Will do business with you guys again!! A++

Joe

Caddick

Very happy with my order. Could have used some instructions on the install. Thanks Youtube. Also don't really understand the trans tune. Didn't get any verification it was installed on the tuner or even how it is installed. Don't even know if I really have it.

Tracy

Funderb

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

Eddie

B

Yes very happy with all your service. Thanks

Wayne

Hucke

Works great thanks

Tyler

Birtciel

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 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

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

Greg

Borgman

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

Nick

Coley

Yes I'm very happy with the kit I got it in and it's working great.

Jim

Jones

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

Great company to deal with will definitely use them again

mkhot

shottra

Fast shipping and good fitment

Mitchell

White

You nailed it, great products and a great price!

Jeremy

White

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

Steve

Jones

Works great nice setup

Cristian

Larios

Worked great! The kit had everything I needed to fix the issue.

Tommy

Johnson

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

Jeff

Wooton

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

Joe

Murphy

Works awesome. Thanks I appreciate you.

Don

Allison

Thanks guys, everything worked out great. My order came in on time and any questions I had, you guys we're able to answer me via email ASAP. I will definitely recommend you. Thanks again

Tristan

Wright

Everything went good on the install

BJ

Putman

Product was not really compatible with the C/C as turbo is smaller so GDP will only give me 1 tune. I understand why but, I bought the 5 position switch was so I could adjust power as at times I do not tow and others 30k lbs. Other than that like the tune and GDP tech line was very, very helpful So can't use the 5 position switch but will keep until I install a larger turbo as per GDP. Thanks for the product and it really sounds like a truck now.

Bill

King

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

Darrell

Blackw

5 Stars!

Daniel

Johnson

Great customer support!

Javier

Hernandez

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

Nestor

Bueno

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

Sun

Man

Works great for me.

Jeff

McGuffin

%100 great service awesome timing on parts!

Jesse

Ward