No items found.
All
DPF Delete Exhaust

FLOPRO DUAL 5 INCH EXHAUST SYSTEM | 2017-2019 CHEVY/GMC L5P DURAMAX

2017-2019 CHEVY/GMC L5P DURAMAX
USD999.99
USD1,641
20 reviews

Add To CartBuy Now
Free Shipping on all Ground Orders!
Thank you! Your order has been received!
Oops! Something went wrong. Please try again.
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.

Returns

We understand the importance of clarity in our return procedures, both for our customers' peace of mind and for ensuring a smooth process. We've outlined our updated guidelines to facilitate efficient returns here.

On Sale!
Recommended Add-ons

Complete your kit with these upgrades!

No items found.
Choose Your Upgrades
Buy Now
USD999.99

Product Information

Overview
Powerlevels
Compatibility
More

Product Description

5" Downpipe Back Dual | 2017-2019 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. SOLD AS METAL ART.

Powerlevel Options

Product Compatibility

Chevy / GMC
Duramax
2017-2023 L5P/L5D

2017-2019 CHEVY/GMC L5P DURAMAX

‍

Other Information and Resources

Satisfied Customers

Hear what our customers have to say about our diesel parts.

There aren't any reviews for this product yet. Be the first! Leave a review here.
Offroad Recommendations

Other Great Buys

Check out some other products that you might like

On Sale

DOWNPIPE + PASSENGER UP PIPE | 2004.5-2010 DURAMAX | CLOSEOUT BUNDLE!

2004.5-2010 CHEVY / GMC DURAMAX
DPF Delete Exhaust
USD149.99
false
Apr 02, 2025
On Sale

PREMIUM LION ENGINEERING DEF DPF PLUG KITS

DPF Delete Exhaust
USD199.99
false
May 01, 2025
On Sale

3.0L 2020-2022 CHEVY / GMC LM2 | GDP DELETE PIPE

3.0L 2020-2022 CHEVY / GMC LM2
DPF Delete Exhaust
USD699.99
false
Apr 02, 2025
Product Name
Product Note
Selected Variants
Subscription Title
Product Discount (-0$)
CODE (-0$)
$0
$0
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Your Cart Is Empty
Success message won't be visible to user. Coupon title will be listed below if it's valid.
Invalid code
CODE
Subtotal
$0
Order Discount
-$0
CODE
-$0
Total
$0
Checkout
Truck is back to running like it should thanks

Johnny

Quarles

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

Everything worked out perfect, instruction very accurate

Cruz

Tovar

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

Great everything worked perfectly!

Dave

Skibinski

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 and super nice customer service

David

Hancock

This product is really great. It has significantly improved the fuel mileage, going from 23 mpg to 28 mpg. On top of that, the engine now responds much more quickly when taking off.

Dennis

R

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

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

Darwin

Grewe

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 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

It is amazing! Truck runs like a dream!

Luis

Morato

Works great nice setup

Cristian

Larios

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

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

Thanks y'all Done great

John

Rodge

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

Perfect I love it

Jose Ramos

Cortez Lopez

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

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

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

I wood give them 5 Stars on my order. I'am very please with my exhaust system. Thanks

Robert

Brum

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

Greg

Borgman

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

Jeff

Wooton

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

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

Worked great, will use again if needed!!

Dale

Cagley

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

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

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

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

Chris

Paul

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

Kyle

Roose

Happy

Karl

Patay

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

Ken

Kilby

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

Joe

Murphy

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

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

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

Hi there and sorry it took me a long time to get back to y'all. I f**king love the way my truck runs and sounds now . Thank

Jay

Thompson

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

Jim

Jones

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

You guys are great! ")

Betty

Sutherland

My feedback on Jeep Cherokee | Ram 1500 3.0L Eco Diesel EGR DPF DEF Delete Kit: Very happy with the setup. Some issues I had was the exhaust hitting the transmission mount. The bend that it comes with was not enough so it rubs. It needed better instruction for the "Jeep" model EGR Delete. All I could find was for the Ram. The Ram is slightly different than mine is, routing back to firewall heater core hose, mine does not have that and I had to simply cap a line off. The upper had the holes drilled in wrong spots for my metal tube coolant input. I just cut your bracket and deadhead the input side from just the loose piece. Otherwise I am happy I do not have the crap egr,def,and the dpf is gone!!!

Eric W Fulton

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

Anthony

Guilian

Truck runs great now. Thank you.

James

Vournas

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

Anonymous

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

yes working good so far

Steve

Noriega

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

Rodrigo

Luna

Works great thanks

Tyler

Birtciel

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

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

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

Peter

Rodriguez

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

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

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

Michael

Gilbert

Received everything very quickly!

Greg

Rinkes

Works as it should. Quick shipping

Chris

Quacken

The best product and excellent customer service!

Jeff

Boudreau

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

Eddie

B

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

Yes very happy with both my orders

Nicholas

Estes

5 Stars!

Daniel

Johnson

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

Marland

King

5 star best of the best

Tryhard

You guys are the best, thank you.

Mike

E

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

Five stars, very responsive!

Nelson

Merced

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

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

Nick

Coley

THIS WORKED AS IT SHOULD-NO PROBLEM INSTALLING -THANKS

Mark

Camarra

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 parts and shipping

Dan

Tompkins

Yes very happy with all your service. Thanks

Wayne

Hucke

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

Darrell

Blackw

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

Yes, I am definately happy with the products and services I purchased from you! The shipping was fast and secure, arriving within 5 days of ordering. Thank you for a great shopping experience, I have several friends looking for similar products and services, and have directed them towards your company. Thanks again for everything-

James

Dean

Awesome Great job 👏

Jeff

Cooper

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

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

Michael

Works awesome. Thanks I appreciate you.

Don

Allison

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

Great!!!

Doug

Candler

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

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

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

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

Joe

Caddick

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

CHRIS

SWAIN

Yes really good love it

Juan

Bravo

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

Eliazar

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

Excellent service and parts... Fast shipping!

Jonathan

Coo

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

Neil

Mayes

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

Pascal Pepin

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

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

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

Everything went well. Thank you very much

Tom

Honrath

Very happy

Charlie

Wade