EGR/DPF/DEF Delete 2011-2016 LML Chevy GMC 6.6L Duramax All-in-One Delete Kit

EGR/DPF/DEF Delete 2011-2016 Chevy GMC LML 6.6L Duramax All-in-One Delete Kit

Unlock the full potential of your 2011–2016 Chevy/GMC 6.6L LML Duramax with our All-in-One Delete Kit. This comprehensive package includes a DPF delete race exhaust, a full EGR/cooler delete kit, and a Mini Maxx V2 tuner. This kit helps lower EGTs, provide smoother air flow and sharper response with proper calibration. For off-road use only.

Fitment

2011-2016 Chevy Silverado / GMC Sierra with LML 6.6L Duramax engine

*Not for Cab & Chassis. 

Flange types: 2015.5-2016 trucks with V-band are incompatible with this kit. Verify your flange before purchase.

V-band: 2011–2015
3-bolt: 2015.5–2016

Benefits of Delete Kits

Increased Power: Five power levels (0HP, 50HP, 75HP, 100HP, and 150HP) allow you to tailor performance to your needs.

Better Fuel Economy: A free-flowing exhaust design minimizes backpressure, optimizing fuel efficiency.

Extended Engine Life: Lower combustion temperatures and improved cooling systems enhance reliability and durability.

Complete Solution: No additional parts needed – it’s all here in one package.

What's in the Kit & Installation Guide

Mini Maxx V2 Tuner, Installation instructions.

Click here for all known issues BEFORE ordering. 

EGR Delete Kit (available in Silver, Black, or Red), Installation instruction

DPF Delete Kit (available options: DPF Race / DPF Race with Muffler / Downpipe Back / Cat Back), Installation instruction

How to Choose a DPF Delete Pipe?

4'' vs 5'' Straight Pipe Comparison

• 4-inch Straight Pipe: Produces a tighter, raspier exhaust note—especially noticeable at lower RPMs. Ideal for daily driving or mildly tuned trucks where excessive drone is undesirable.
• 5-inch Straight Pipe: Delivers a deeper, more refined tone with less high-pitch resonance. Better suited for high-output builds and towing applications, where improved exhaust flow is beneficial.

Driver Feedback Summary

• 4" pipe works well for stock or lightly modified trucks and a quieter cabin.
• 5" pipe is perfect for aggressive builds, deep-tone enthusiasts, and those maximizing exhaust performance.

Types of DPF Delete Kits

• Removes only the DPF (retains stock downpipe)
• Offers minimal performance gains but is the most budget-friendly
• Best for cost-conscious users or avoiding emissions testing

• Replaces the exhaust from the turbo downpipe back
• Improves mid-range power and throttle response
• Ideal for street builds using the stock turbo

• Splits into dual exhaust paths
• Enhances cooling and flow for extreme conditions
• Commonly used in heavy towing or competition setups

Muffler vs. No Muffler

• Reduces exhaust noise for daily driving
• Slight power restriction (~5–10 HP)
• More likely to comply with local noise regulations

• Loud, aggressive exhaust tone
• Unrestricted flow for maximum horsepower
• Often not street-legal due to noise and emissions rules
• Intended for off-road or race use only

FAQ

Q: What are some other tuner options you have for LML Duramax diesel?

A: Check LML delete kit with EFI Live tuner. Feature: the SOTF version allows you to change tunes in real-time while driving,

Check LML delete kit with EZ LYNK tuner. Feature: through Wi-Fi connectivity, your technician can deliver custom tune files, provide updates, and assist with diagnostics remotely.

Q: What is included in the All-in-One Delete Kit?
A: This kit comes with everything you need to delete the EGR, DPF, and DEF systems on your 2011-2016 LML Duramax. It includes the Mini Maxx V2 Delete Tuner for tuning and real-time adjustments, a complete EGR Delete Kit to improve engine efficiency, and a DPF Delete Race Pipe to optimize exhaust flow. It’s a one-stop solution for off-road performance upgrades.

Q: Can I install this kit myself, or do I need professional help?
A: If you have basic mechanical skills and are comfortable working on your truck, you can definitely install this kit yourself. The Mini Maxx V2 Tuner is plug-and-play, and we provide all the necessary components with clear instructions. However, if you’re unsure or lack the tools, consulting a professional is always a good idea.

Q: Will using this kit void my truck’s warranty?
A: Yes, installing this kit may void your vehicle’s warranty, as it involves removing emissions equipment. This kit is intended for off-road use only. Always check with your local regulations and consider your warranty status before proceeding.

Q: How does this kit improve my truck’s performance?
A: By removing restrictions from the EGR, DPF, and DEF systems, your engine can breathe better, resulting in improved combustion efficiency. This means more horsepower, better torque, and optimized fuel economy. Additionally, the reduced backpressure helps extend the lifespan of your engine components.

Q: Can I adjust the power levels myself?
A: Absolutely! The Mini Maxx V2 Delete Tuner lets you switch between five power levels—0HP, 50HP, 75HP, 100HP, and 150HP—on the fly. Whether you’re towing heavy loads, cruising daily, or pushing for maximum performance, you’re in complete control.

Q: Will this kit affect my truck’s fuel economy?
A: Yes, in a good way! By eliminating restrictive systems and improving exhaust flow, your truck’s fuel efficiency can see significant improvements, especially during highway driving or under heavy loads. Actual gains will vary based on driving habits and power settings.

Q: Are there any legal restrictions I should know about?
A: This kit is intended for off-road use only. Removing emissions equipment may violate federal or state laws if used on public roads. Always check your local regulations before installation and use.

Q: What tools will I need to complete the installation?
A: For the installation, you’ll need basic tools such as wrenches, sockets, and screwdrivers. A torque wrench and access to a lift or jack stands can make the process easier. The kit includes everything else you’ll need for the upgrade.

Q: What kind of maintenance should I perform after installing this kit?
A: After installation, keep an eye on your tune settings and regularly check your engine oil and coolant levels. Since you’re eliminating the EGR and DPF systems, your engine will run cleaner, reducing the need for frequent maintenance. Still, follow routine checks to ensure everything is running smoothly.

Fast & Free Shipping Policy

Your order will be dispatched within 1-2 business days, and the package will arrive within your order's estimated date. Click for Shipping Policy.

Easy & Free Return Policy

Every order comes with a 14-day free return, which means you don't have to pay for a return slip. Click for Return Policy.