GDP MM3 Tunes

Dodge / RAM Cummins 6.7L

Novelty Tunes
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ADD WHISTLE & RUMBLE
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Instructions
No installation manuals available for this product at this time. Request a manual here.
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Recommended Add-ons

Complete your kit with these upgrades!

Add-on | Transmission Tuning (TCM) | MM3

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TCM - SELECT SAME BUILDER AS ECM TUNES
MOTOROPS (68RFE ONLY)
GDP (68RFE ONLY)
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Why would I want this?

Transmission Tuning optimizes the shifting behavior of your vehicle's transmission, improving overall performance and responsiveness.

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USD699.99

Product Information

Product Description

GDP MM3 Tunes | 2007-2021 Dodge / RAM Cummins 6.7L

GDP provides customized tunes tailored to your Cummins 6.7L diesel engine. Increase horsepower by up to 200+, plus improved fuel economy and ZERO emissions. Easily access your tunes with a simple connection to your laptop.

Custom tuning is written to your vin and modifications. There is absolutely no refunds. 

Powerlevel Options

5 LEVELS UP TO 200HP DEPENDING ON TRUCK YEAR.

Product Compatibility

Dodge / RAM
Cummins
2007.5-2012 6.7L
Dodge / RAM
Cummins
2013-2018 6.7L
Dodge / RAM
Cummins
2019-2021 6.7L

2007.5-2021 RAM CUMMINS 6.7L 2500 3500 4500 5500

Other Information and Resources

Satisfied Customers

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

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Yes 😊

Darrell

McKittri

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

5 Stars!

Daniel

Johnson

Great customer support!

Javier

Hernandez

Everything went good on the install

BJ

Putman

Everything worked out perfect, instruction very accurate

Cruz

Tovar

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

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

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

Charlie

Clonch

Works as it should. Quick shipping

Chris

Quacken

Thanks y'all Done great

John

Rodge

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

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

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

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

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

Eddie

B

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

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

Received everything very quickly!

Greg

Rinkes

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

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

Jeff

Wooton

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

Valentin

Robl

You nailed it, great products and a great price!

Jeremy

White

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

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

Michael

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

Rodrigo

Luna

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

John, I'm a big thumbs up on your team overall. Very pleased with the level of support prior to, during, and after the changes I made. The number one differentiator between your team and others is the ability to pretty quickly get a live person on the phone and if needed for them to remote into the laptop connected to the vehicle. There were a few issues, but quickly addressed and or your guys confirmed for me what was happening and that all was well and as expected. Good work by all! A+ so far! Thanks Chris

Chris

M

You have a very organized company it came right on time thank you

Mary

Clark

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

Anthony

Guilian

Excellent!!!!! Everything worked out perfect

Mitchel

Johnson

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

Tommy

Johnson

Works great thank you so much 5 stars

Jamie

Moore

You guys did awesome!!!

Whitney

Schiesser

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

Michael

Gilbert

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

Sun

Man

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

Marty

Waggo

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

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

Very happy with everything 5 stars

Kelly

Hatfield

Very happy

Charlie

Wade

yes working good so far

Steve

Noriega

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

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

Peter

Rodriguez

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

THIS WORKED AS IT SHOULD-NO PROBLEM INSTALLING -THANKS

Mark

Camarra

You guys are great! ")

Betty

Sutherland

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

You did a great job 🤙

Oliver

Large

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

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

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

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

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

Robert

Brum

5 star best of the best

Tryhard

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

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

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

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

Will

S

Awesome fast shipping

Mike

Bumpus

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

Fast shipping and good fitment

Mitchell

White

Everything worked out perfectly. Super happy.

Rian

Mckinnon

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

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

Awesome Great job 👏

Jeff

Cooper

Truck is back to running like it should thanks

Johnny

Quarles

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

Eliazar

Yes very happy with all your service. Thanks

Wayne

Hucke

The best customer service in the business!!!!

Brock

Maxwell

Worked great

Kenzie

Trucking

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

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

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

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

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 love all my products and my truck runs great

George

House

Works great nice setup

Cristian

Larios

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

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

Clifford

Camp

You guys are the best, thank you.

Mike

E

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

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

Jim

Jones

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

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

David

Woodc

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

It was easy and it makes the truck run better

Chris

Lagorga

It was great so far so good 👍

Robert

Stuart

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

Chris

Shires

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

Ray

Chaple

Truck runs great thank yall

Fabian

Benavi

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

Greg

Borgman

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 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

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

Ray

Moyer

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

Neil

Mayes

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

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

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