FLOPRO DUAL 5 INCH EXHAUST SYSTEM | 2015.5-2015 CHEVY/GMC DURAMAX (3 BOLT FLANGE)

2015.5-2016 CHEVY/GMC DURAMAX (3 BOLT FLANGE)

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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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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.

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Product Information

Product Description

5" Downpipe Back Dual | 2015.5-2016 GM 2500/3500 6.6L DURAMAX

Description

Constructed out of 16 gauge aluminized steel or 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
  • OEM Style 3 Bolt Flange
  • 4" Race Pipe
  • No Bungs
  • Fits Cab/Box Configurations: EC-CC/SB-LB-Dually

 

IMPORTANT NOTE
These kits will only fit models equipped with the OEM style 3-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
2015.5-2016 LML

2015.5-2015 CHEVY/GMC DURAMAX (3 BOLT FLANGE)

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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

Everything worked out perfect, instruction very accurate

Cruz

Tovar

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 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

I love all my products and my truck runs great

George

House

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

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

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

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

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

It was great so far so good 👍

Robert

Stuart

Received everything very quickly!

Greg

Rinkes

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

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

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

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

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

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

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

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

Tommy

Johnson

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

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

CHRIS

SWAIN

good tunner worked the way they said.

Bat

Great!!!

Doug

Candler

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

You guys are great! ")

Betty

Sutherland

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

Chris

Taunton

I want to thank you for your time and patience. Dino diesels is truly an outstanding company. I will definitely recommend you guys when ever I can. Thanks again.

Lance

Benner

Excellent service and parts... Fast shipping!

Jonathan

Coo

It is amazing! Truck runs like a dream!

Luis

Morato

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

Clifford

Camp

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

Steve

Jones

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 product will be ordering more very soon!

Jaron

Hastings

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

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

Ken

Kilby

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

Worked great, will use again if needed!!

Dale

Cagley

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

Yes really good love it

Juan

Bravo

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

Valentin

Robl

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

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

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

Shannon

Braun

Truck runs great thank yall

Fabian

Benavi

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

Exactly what I needed and wanted.

David

Murphy

Works awesome. Thanks I appreciate you.

Don

Allison

Works great thank you so much 5 stars

Jamie

Moore

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

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

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

Joe

Caddick

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

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

The best product and excellent customer service!

Jeff

Boudreau

So far so good

Jeff

Jordan

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

Darwin

Grewe

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

Everything was great my order was exactly what I wanted no hassle no problem. Would definitely order again from Y'all again.

David

Woodc

You did very well thank you so much.

Terry

Conk

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

You guys are the best, thank you.

Mike

E

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

Marland

King

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

Pascal Pepin

Very happy

Charlie

Wade

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

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

Yall did great! Fast service and overall great experience!

Travis

Puryear

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

Rodrigo

Luna

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

THIS WORKED AS IT SHOULD-NO PROBLEM INSTALLING -THANKS

Mark

Camarra

Truck is back to running like it should thanks

Johnny

Quarles

Great so far seems to be exactly what yall described thank you

Marty

Waggo

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

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

Works great thanks

Tyler

Birtciel

Worked great

Kenzie

Trucking

Awesome fast shipping

Mike

Bumpus

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

THANK YOU!

Shane

5 Stars!

Daniel

Johnson

Everything worked out perfectly. Super happy.

Rian

Mckinnon

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

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

Nestor

Bueno

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

Ray

Chaple

You did a great job 🤙

Oliver

Large

Five stars, very responsive!

Nelson

Merced

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

Eliazar

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

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 Great job 👏

Jeff

Cooper

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

Great company to deal with will definitely use them again

mkhot

shottra

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

Peter

Rodriguez

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

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

Michael

Gilbert

You nailed it, great products and a great price!

Jeremy

White

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