Home > 4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe
4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe |SPETUNER
4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe |SPETUNER-2
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4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe |SPETUNER
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4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe |SPETUNER-12
4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe |SPETUNER-13
4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe |SPETUNER-14

4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe

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Product Information +

Why Choose a DPF Delete Kit for Your LMM Duramax?

If you drive a 2007.5–2010 GMC Sierra or Chevy Silverado 2500HD/3500HD with the 6.6L LMM Duramax engine, this DPF Delete Kit is designed to deliver real performance gains. The LMM engine is robust, but factory emissions components can limit power and increase maintenance requirements. Our race pipe kit removes the Diesel Particulate Filter (DPF), freeing up your exhaust and unleashing the true potential of your diesel engine.

Benefits:

  • More Horsepower & Torque: Reduced backpressure lets your engine breathe easier.

  • Improved Fuel Economy: Less restriction means better efficiency and fewer regens.

  • Lower Maintenance Costs: Say goodbye to expensive DPF replacements.

Note: This kit is intended for off-road use only and may not be legal for on-road vehicles in certain states.

What’s Included in the Kit

  • Material: 409 Stainless Steel

  • Wall Thickness: 2mm

  • Diameter Options: 4" or 5"

  • Fitment: Tailored for 2007.5–2010 LMM 6.6L Duramax models

  • Configuration Options:

  • Race Crew Cab / Long Bed

  • Race Extended Cab / Long Bed

  • DP-Back Pipe

  • Hardware: All clamps, bolts, and brackets included

Compatible with stock downpipe and factory bolts on most models.

Built with Heavy-Duty 409 Stainless Steel

This DPF delete pipe is constructed from high-quality 409 stainless steel, a durable and heat-resistant material explicitly engineered for diesel exhaust systems. Unlike mild steel or low-grade alternatives, 409 offers superior structural integrity under extreme exhaust temperatures, making it ideal for off-road, towing, and heavy-duty applications.

While 409 stainless steel may show light surface oxidation over time, it does not compromise performance or durability. In fact, it's widely trusted by OEMs and performance exhaust manufacturers for its cost-effective strength and long-term reliability.

Choosing 409 stainless steel means you're getting maximum value: high-performance exhaust flow, reliable heat resistance, and rugged construction — all without paying premium pricing for unnecessary cosmetic polish.

Made to work, built to last. Whether you're hauling, racing, or tuning for efficiency, this pipe gets the job done with confidence.

Fitment & Compatibility

This DPF delete kit fits the following:

  • GMC Sierra 2500HD / 3500HD (2007.5–2010)

  • Chevrolet Silverado 2500HD / 3500HD (2007.5–2010)

  • 6.6L LMM Duramax Diesel Engine

Cab & Chassis Note: Not compatible with cab & chassis models due to longer frame. Contact us for special-fit kits.

Installation Overview

Estimated Time: ~1 hour Tools Required: Basic hand tools (ratchet, wrench set) Installation Tips:

  • A lift is helpful but not required

  • Some short-wheelbase models may need slight pipe adjustment

  • Use included hardware; factory parts may be reused for an extra secure fit

Need help? Contact our tech team for installation support or vehicle compatibility checks.

Real-World Performance Gains

Our customers report:

  • +25 HP and +50 lb-ft torque gains (with proper tuning)

  • 1–2 MPG improvement under normal driving conditions

  • Cleaner engine operation without regen cycles

Legal & Compliance Notice

DPF delete kits are for off-road use only. Removing emissions equipment may violate federal or state laws. Always check local regulations before purchasing or installing any delete products.

Frequently Asked Questions about the LMM Duramax DPF Delete Kit

Can you delete the DPF on an LMM Duramax?

Yes, the DPF on the 2007.5–2010 LMM Duramax can be removed using a race-only DPF delete pipe. This modification improves exhaust flow and performance, but is intended for off-road use only due to emissions regulations.

Does a DPF delete damage the LMM Duramax engine?

No, when properly tuned, deleting the DPF does not harm the engine. In fact, it can reduce backpressure and heat buildup, helping the engine run more efficiently and extending its life in off-road conditions.

Is it illegal to delete the DPF?

In most U.S. states, it is illegal to operate a vehicle on public roads without emissions equipment like the DPF. DPF delete kits are intended for off-road, competition, or farm use only. Always check local laws before modifying your exhaust system.

What are the weak points of the LMM Duramax engine?

The LMM Duramax is a reliable engine, but common concerns include clogged DPFs, high EGTs during regeneration, and EGR system wear. Deleting restrictive components like the DPF (for off-road use) can help alleviate some of these issues.

What are the downsides of a DPF delete?

While a DPF delete improves performance and fuel economy, it may void your factory warranty, fail emissions testing, and produce more visible exhaust smoke. It's also not street-legal in many areas.

Is the LMM a good Duramax engine?

Yes, the LMM is considered a strong and dependable engine, offering improved emissions technology over its predecessors and a solid 6-speed transmission. With proper care (and off-road modifications like DPF delete), it delivers excellent power and durability.

Do I need a tuner with a DPF delete kit?

Yes. Removing the DPF requires tuning the ECM to prevent error codes and regen cycles. Without proper tuning, your truck may enter limp mode or display persistent warning lights.

What’s the difference between a DPF delete and a full delete kit?

A DPF delete only removes the particulate filter section. A full delete kit may also include EGR delete components and DEF system removal for complete emissions system bypass (for off-road use only).

Does this kit work on cab & chassis models?

No. The standard DPF delete kit does not fit cab & chassis trucks due to their longer frame. Please contact us for a specially designed option.

Please get in touch with usWhat gains can I expect with this DPF delete kit?

With tuning, users commonly report gains of 25+ horsepower and 50 lb-ft of torque, along with a 1–2 MPG improvement in fuel economy under normal driving conditions.

 

Order Now

Unleash your truck's full potential. Select your configuration and pipe diameter above, then click 'Buy Now' to upgrade your LMM Duramax today. Built tough, made to last, and ready for serious power gains.

Customer Reviews

Based on 5 reviews
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D
David Deavers
09 LMM

Pipe was delivered fast and was an easy fit up. Price was the best around.

D
Don Heffken
DPF Delete pipe

Great fit. Getting 2-3 mpg improvement for city driving.

j
james preston

4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe

C
Cheston Dougherty

Easy install great product

K
Karson Mudd
Downpipe back exhaust

All around great kit. Easy to install and sounds great.

Let customers speak for us

from 169 reviews
For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
John Patterson
5” exhaust

Honestly, the exhaust was much nicer than I expected fitment wise. It fit just as well if not better than exhaust systems I have installed in the past that were a few hundred more dollars. Shipping time was pretty good as well… received it the same week I ordered it. That’s about all I can speak on for now as I have only put about 100 miles on it.

For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
DPF/DEF/EGR Delete 2007-2009 6.7 Cummins Dodge Ram 2500 3500 All-in-One Kit
Chris Edwards
Slick kit and the best bang for the buck out there

Everything you need and nothing you don't. The parts install really impressively smoothly.

Could definitely use better / ANY instructions, especially since youtube vids on deleting trucks have been taken down lately.

It took a day of searching and watching vids here and there to find out it is extremely important to go in a certain order:
1: install the tuner first
2: install a "smog equipment has been removed" tune even though the truck still has the equipment at the moment.
3: remove the dpf and egr bits

DPF/DEF/EGR Delete 2007-2009 6.7 Cummins Dodge Ram 2500 3500 All-in-One Kit
DPF/DEF/EGR Delete 2011-2019 6.7L Powerstroke All-in-One Kit
Vern Olson
Glad I bought it

Money well spent. Install was simple. Do not misunderstand simple with easy. Although it was easy for me. Install of the MINI MAXX V2 was a bit different. The video provided on the site was not how my installation went. In fact it was very different. With that, it did go as expected. The tuner does have some what of a learning curve, not very much info out there now with all the bureaucratic garbage we, in the US, have to contend with. It is out there, just TOUGH to glein. The removal of that gargantuan nightmare of an exhaust filter was not for the faint of heart. It is heavy, and the connectors on all those sensors can be challenging. It will be worth the struggle. The removal of the Extra Grace Required part was the hardest part for me. Having had my exhaust and turbo out 2 times, one of the bolt heads got damaged in the last re-install. That took a huge amount of patience and correctly applied downward force and a special tool. FYI THE PYROS DO NOT READ CORRECTLY ON 2011 F350 IT WILL ONLY READ 1193°!
Then the block off bypass parts, easy install. Looks great and does everything I expected. As a plumber I was able to use some expansion couplings and cut the water tubes and did not use the supplied hose. Then back on the ground to install the exhaust pipe. That was a challenge. The hanger bracket wasn't quite on par and was bent a bit. Nothing like a torch and a quality set of Pittsburgh 3/4" box end wrenches. Got that squared away, lined everything out and the slip joint went in nicely. I only used one of the 3 bolt flange bolts because I saved 2 of the pressed in studs. The down pipe connector flange was a special kind of hurrah. Perseverance, busted knuckle, and lots of upward pressure, accomplished that.! Overall I like the kit, don't like it doesn't come with instructions, but if you're buying this kit I'm betting you're already a mechanic anyway. HUGE THANKS TO SPETUNER.
One more thing, FedEx delivered my 1st kit to 2 wrong addresses, SPETUNER made it right and sent out a new kit for my. That is worthy of my review!

DPF/DEF/EGR Delete 2011-2019 6.7L Powerstroke All-in-One Kit
DPF/DEF/EGR Delete for Ram 2010-2012 6.7 Cummins All-in-One Kit
Warren Louwien
2012 6.7 Cummins

It works great. My speedometer finally reads correctly. My fuel mileage went from 11.5 mpg to15 mpg.

DPF/DEF/EGR Delete for Ram 2010-2012 6.7 Cummins All-in-One Kit
DPF/DEF/EGR Delete for 2013-2018 6.7L Cummins All-in-One Kit
Linda Rhodes
Great

Good email communication. Quick delivery

DPF/DEF/EGR Delete for 2013-2018 6.7L Cummins All-in-One Kit
For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
Chris Eaton
Great product great price!

Exhaust was easy to install and sounds great! Nice kit!

For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
Philip Snell

Everything was perfect. Very dyi friendly .

For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
DPF/DEF/EGR Delete 2011-2019 6.7L Powerstroke All-in-One Kit
Benjamin Huey
All in one kit 6.7 powerstroke

Everything works great truck runs and preformes better just what they said it would do

DPF/DEF/EGR Delete 2011-2019 6.7L Powerstroke All-in-One Kit
4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe
David Deavers
09 LMM

Pipe was delivered fast and was an easy fit up. Price was the best around.

4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe
For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
Brett Rood

For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500

For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
H&S PERFORMANCE Mini Maxx V1 DPF Delete Tuner
Bobby Y
Mini MAXX v1

Works great, simple to operate

H&S PERFORMANCE Mini Maxx V1 DPF Delete Tuner
DPF/DEF/EGR Delete for 2013-2018 6.7L Cummins All-in-One Kit
david quintanar
2013 ram 3500 6.7

Everything I ordered came in right my truck is running great thank you SPETUNER keep up the good work

DPF/DEF/EGR Delete for 2013-2018 6.7L Cummins All-in-One Kit
4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe
Don Heffken
DPF Delete pipe

Great fit. Getting 2-3 mpg improvement for city driving.

4"/5" 2007.5-2010 LMM 6.6L Duramax DPF Delete Race Pipe
EGR/DPF/DEF Delete 2011-2016 LML 6.6L Duramax All-in-One Kit
CAHD IRLBECK

Works very well

EGR/DPF/DEF Delete 2011-2016 LML 6.6L Duramax All-in-One Kit
For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500
Jeremy Bond

For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500

For 4"/5" 2004.5-2007 5.9L Cummins DPF Delete Race Pipe Dodge Ram 2500/3500