8 Products
Collection: All In One Kit-Duramax
1. Why More Duramax Owners Are Choosing Delete Kits
In the performance world, a Duramax delete kit has become a go-to upgrade for owners of the 6.6 Duramax engine. Whether you’re driving a 2005 LLY Duramax or a 2020 L5P Duramax, installing a delete kit can lead to noticeable gains in horsepower, lower intake temperatures, and improved fuel efficiency.
While emissions regulations continue to tighten across many states, Duramax delete kits remain popular among off-road and race-use enthusiasts. Owners of models like the LMM and LML often report major improvements in reliability and engine life after removing factory restrictions like the EGR, DPF, and CCV systems. SPELAB’s all-in-one Duramax delete solutions are designed to fit specific model years, making it easier than ever to upgrade your truck in one complete package.
2. One-Stop Solutions — A Complete Overview of SPELAB Duramax Delete Kits
SPELAB offers a full lineup of Duramax delete kits tailored to the specific needs of different 6.6 Duramax engine models, covering everything from the 2004.5 LLY to the latest 2023 L5P. Whether you're looking to remove the EGR system, upgrade the DPF exhaust setup, or reroute the CCV system, SPELAB delivers complete, vehicle-specific packages that make the process seamless.
For example, the LLY delete kit includes an EGR, CCV, and DPF combo; the LMM kit offers optional EGR setups (with or without intake) and can be upgraded with V2 or V3 tuners. For more customization, LML and L5P delete kits feature options like muffler-equipped exhausts or dual DP-back systems—perfect for drivers seeking enhanced sound and visual appeal. Every kit is designed for direct compatibility, ensuring a faster, easier install and optimal performance for your truck.
3. Duramax Delete Kits Full Overview
3.1 LLY Duramax Delete Kit (2004.5–2005 Model Years)
For owners of 2004.5 to 2005 6.6 Duramax LLY trucks, the SPELAB-designed LLY delete kit is a cost-effective upgrade that delivers real-world improvements in performance and reliability—especially for daily driving, light towing, and mild off-road use.
This kit includes three essential components: an EGR delete to eliminate carbon buildup from exhaust gas recirculation, a CCV delete to improve crankcase ventilation and reduce oil blow-by, and a complete DPF delete setup featuring a downpipe, up-pipe, and DP back exhaust system. The full system ensures smooth, unrestricted exhaust flow from the turbo all the way to the tailpipe.
Installation is straightforward and often doesn’t require extensive tuning, making this an ideal choice for first-time modders or those looking for reliable power gains. After installing this Duramax delete kit, most users report quicker throttle response, stronger low-end torque, and smoother engine performance—making it a solid entry-level performance upgrade for the LLY platform.
3.2 LMM Duramax Delete Kit (2007.5–2010 Model Years) Performance Upgrade Breakdown
For 2007.5 to 2010 LMM Duramax trucks, the LMM delete kit from SPELAB offers exceptional performance improvements and flexible configurations. This comprehensive kit typically includes an optional EGR delete (with or without the intake manifold), a CCV reroute system, and a powerful tuner module.
Notably, the V2 and V3 tuner versions—especially those equipped with SOTF (Switch On The Fly)—let drivers toggle between performance modes in real time, striking the ideal balance between power and fuel efficiency.
Installing this Duramax delete kit unlocks noticeable horsepower gains, smoother shifting, and enhanced throttle response. For truck owners looking to push performance even further, SPELAB recommends upgrading the intake system alongside the delete kit. It’s the perfect way to let your 6.6 Duramax engine breathe easier and run harder.
3.3 LML Duramax Delete Kit (2011–2016 Model Years) — Advanced, Customizable Performance Upgrade
If you own a 2011–2016 LML Duramax, the LML delete kit from SPELAB is your go-to solution for serious power gains and next-level customization. This complete setup includes a tuner module, CCV system upgrade, EGR delete, and a full DPF delete exhaust package, all engineered to meet the high-output demands of the 6.6 Duramax engine. One of the key highlights of this kit is the variety of exhaust configurations available—choose from options with a muffler, DP back single or dual exit, or even a full cat-back system.
This means you can fine-tune your setup based on your preferred sound, backpressure, and style. Once installed, LML trucks benefit from quicker turbo spool, stronger throttle response, and more efficient exhaust flow. This LML delete kit is perfect for experienced diesel enthusiasts who want maximum control over their build and performance.
3.4 L5P Duramax Delete Kit (2017–2023+ Model Years) — Smart, All-in-One Integrated Solution
For 2017 to current L5P Duramax trucks, the L5P delete kit from SPELAB represents one of the most advanced all-in-one solutions available on the market. Unlike earlier Duramax models, the L5P engine features more sophisticated electronic control systems and stricter emissions hardware.
That’s why SPELAB has engineered a complete kit that covers DPF, CCV, EGR, and DEF delete—giving you full emissions removal while maintaining system stability. This Duramax delete kit includes tuner options specifically designed for the L5P platform, ensuring safe unlocking of your truck’s full performance potential while preserving compatibility with factory ECUs.
Whether you’re hauling heavy loads, off-roading, or just chasing max horsepower, this kit provides a dependable and efficient performance foundation. For drivers planning long-term mods, the L5P delete kit from SPELAB isn’t just a smart upgrade now—it’s a solid base for future power builds.
What Are EGR, DPF, CCV, and DEF?
When shopping for a Duramax delete kit, it’s important to understand what each component actually does. Here’s a breakdown of the most essential terms:
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EGR Delete: The EGR (Exhaust Gas Recirculation) system is designed to reduce emissions by recirculating exhaust gases into the intake. However, it often leads to carbon buildup and reduced performance. Deleting the EGR helps improve combustion efficiency and keeps your engine cleaner.
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DPF Delete: The DPF (Diesel Particulate Filter) traps soot and particles but can restrict exhaust flow and increase backpressure. A DPF delete opens up the exhaust system for better horsepower and improved flow.
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CCV Delete: The CCV (Crankcase Ventilation) system can cause oil vapor to re-enter the intake, contaminating it over time. A CCV delete reroutes this system to reduce oil buildup and extend engine life.
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DEF Delete: DEF (Diesel Exhaust Fluid) is used in the SCR system to reduce NOx emissions. While important for emissions compliance, deleting DEF eliminates the need for constant refills and is intended strictly for off-road use.
SPELAB strongly emphasizes that all Duramax delete kit products are intended for off-road, racing, or closed-course use only. Customers must comply with local emissions laws and EPA regulations. Using non-compliant equipment on public roads may be illegal.
FAQ
When considering a Duramax delete kit for your 6.6 Duramax engine, there are several common questions that come up. Here’s a quick FAQ to help you make an informed decision:
Q1: Do I need a tuner after installing a delete kit?
A: Yes. Whether you’re doing an EGR delete, DPF delete, or DEF delete, a tuner is required to recalibrate the ECU and disable warning lights or limp mode.
Q2: Which tuner version should I choose (V2, V3, or with SOTF)?
A: If you want to switch power levels while driving, go with a version that includes SOTF (Switch On The Fly). V2 is great for basic tuning, while V3 supports more advanced setups and future upgrades.
Q3: Can I still pass emissions or inspection after installing a delete kit?
A: SPELAB delete kits are intended for off-road or closed-course use only. They are not recommended for street-legal applications. Always follow local emissions laws.
Q4: Do I need professional tools or can I install it myself?
A: Some kits—like those for LLY or LMM—are DIY-friendly with basic tools. However, newer systems like the L5P delete kit are more complex and should be installed by a professional for best results.
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$432.77Sale price From $411.13Fitment:
2004 2005 GMC Sierra 2500 3500 HD 6.6 LLY Duramax Diesel
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2015.5 2016 Chevy /GMC Duramax Diesel LML.Silverado and Sierra pickup trucks. -
No reviewsNo reviewsRegular price From $3,699.99
Fitment:
2017-2023 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
2017-2023 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD
Important Notice:
All tunes are non-refundable – Once purchased, they cannot be returned or refunded. Please verify compatibility and confirm your selection before completing your order. If you have any questions, feel free to contact our support team. -
Sale17 reviews4.71 17 reviewsRegular price From $699.00Regular price
$841.44Sale price From $699.00Fitment:
2017-2022 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
2017-2022 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD -
10 reviews4.6 10 reviewsRegular price From $169.77
Fitment:
2017-2023 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
2017-2023 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD
Important Notice: Please verify compatibility and confirm your selection before completing your order. If you have any questions, feel free to contact our support team.
Let customers speak for us
from 2769 reviews
All parts arrived promptly and packed well. Installation was smooth and trouble free except for the tube style heater which would not thread into the new intake elbow. The provided plug threaded in fine so will have to revisit that issue before winter.

Overall I was very impressed. Pricing was great, everything I needed was provided. Quality of the parts was good. I would definitely recommend this package when compared to others.

Great products! Works perfectly!
Thank you so much!!

No written instructions came with the kit, no big deal. You will definately need the IAT extension wiring harness, which we wasnt told we needed. I ended up making my own extension but if you don't the truck will not start. Also the intake horn doesn't fit straight onto the inlet tube so if it looks crooked just make sure the clamp is tightened.

Packaging was good, install was simple, and it sounds great. What more could you ask for?

Kit went on fantastic, all hangers lined up. Freed up power and MPG. I installed the SPELAB muffler too, good combo, good sound. It drones under load and at about 70 but not unbearable. Super happy.

Have purchased a few different things , all worked at advertised! Will be making future purchases.

Great finish, not a terrible install, just time consuming. Just take your time it, we’ll worth it!

I took my F 150 to a local mechanic to get the differential cover and gasket removed, the fluid drained and then everything put back together. I didn't want to bother. My mistake. I got the truck back, put a piece of cardboard under the rear differential and determined that it was leaking slowly. I went back to the mechanic, they supposedly fixed it, but the cardboard check failed again. I went back to the mechanic and they told me it was the pinion seal bearing that was leaking. This problem never existed until I had taken the truck to them. I got the truck back in the pinion seal was no longer leaking but I still had a slow leak from the gasket around the differential cover. $400 later in three trips back to the mechanic I gave up, bought the SPELAB cast aluminum cover and the lube locker gasket plus the necessary fluid and did it myself. No leaks since then. I particularly like the little sight glass since I was able to get the fluid exactly to the halfway mark within the sight glass. I should never have gone to the local mechanic in the first place.

Very well made with quality materials and hardware! You will not be disappointed.

SPE ccv reroute is the best bang for your buck and works very well. Easy install and looks great when installed.

This 5” downpipe back kit fit absolutely perfect. Could not ask for a better fit and finish of this kit. All the hangers are in the correct location and the clamps supplied are of quality!

Installation was a breeze!

I bought this kit for my 2019 Ford F350, the same kit I bought for my 2014 F250 almost 5 years ago. The first kit I had significantly boosted my power to pull my 5th wheel up I-17.
While I haven’t pulled anything big yet with my F350 I can already feel the difference in power and performance.
VERY happy with my purchase and…no more DEF (garbage!).

Great replacement cover! Looks great and was easy to install and makes it much easier and cleaner to change my differential gear oil!