4" DPF Delete Pipe & Mini Maxx Tuner V2 for 6.6L Duramax LML Chevrolet Silverado GMC Sierra
DPF Delete Pipe front view
4" DPF Delete Pipe & Mini Maxx Tuner V2 for 6.6L Duramax LML Chevrolet Silverado GMC Sierra
DPF Delete Pipe front view

4" DPF Delete Pipe & Mini Maxx Tuner V2 for 6.6L Duramax LML Chevrolet GMC Silverado Sierra (2011-2016)

$1,096.80
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Details

4" DPF Delete Pipe & Mini Maxx Tuner V2 for 6.6L Duramax LML. In stock, fast USA shipping.

Fits 2011-2016 Chevy Silverado & GMC Sierra 2500/3500HD. T409 stainless steel, improved MPG and horsepower. Off-road use only.

Brand Model Year Engine Model
Chevrolet Silverado 2500HD 2011-2016 6.6L Duramax LML
Chevrolet Silverado 3500HD 2011-2016 6.6L Duramax LML
GMC Sierra 2500HD 2011-2016 6.6L Duramax LML
GMC Sierra 3500HD 2011-2016 6.6L Duramax LML
✅ Exact Fitment Guarantee | If you are unsure about compatibility, please contact us at service@egrperformance.com with your VIN number.

The 4" DPF Delete Pipe & Mini Maxx Tuner V2 is the ultimate exhaust and tuning upgrade for your 2011-2016 Chevrolet Silverado or GMC Sierra 2500HD/3500HD powered by the legendary 6.6L Duramax LML engine. By removing the restrictive diesel particulate filter and catalytic converter, this all-in-one kit unlocks significant horsepower and torque while boosting combined fuel economy from an average of 13-14 mpg up to 18-19 mpg. The included Mini Maxx Tuner V2 recalibrates your ECU to eliminate DPF regeneration cycles, related error codes, and check engine lights. Crafted from durable T409 stainless steel with a 4-inch mandrel-bent diameter, this race pipe is built to withstand extreme exhaust temperatures and the toughest working conditions. Whether you tow heavy loads, drive daily, or hit the trails, this kit delivers the performance your Duramax deserves. Continue reading to learn more about installation, fitment, maintenance, and the full benefits of upgrading your exhaust system today.
Shipping Details

Ontario CA / Springdale OH / Newark NJ
Houston TX
*Based on your shipping address, we'll pick the closest warehouse to ship from. Since some product isn't stored in the same warehouse, you might get several packages.
Package List

Complete Package Contents

  • 1x 4" DPF Delete Pipe (T409 Stainless Steel, with factory-style hangers pre-installed)
  • 1x Mini Maxx Tuner V2 (with OBD-II cable and pre-loaded DPF delete tunes)
  • 1x V-band Clamp (for turbo direct pipe connection)
  • 1x Complete Hardware Kit (bolts, nuts, washers, and fasteners)
  • 1x Set of Exhaust Hangers (original style, pre-installed on pipe)

Note: Some factory fasteners may need to be reused during installation. A trim may be required for shorter wheelbase models.
Delivery Time

2-5 working days inland in the United States
Attention
Legal Disclaimer EGR DPF Delete Offroad Use Only

LEGAL DISCLAIMER

This product may NEVER be installed on a vehicle registered for highway or public street use. By installing this product onto your vehicle, you assume all risk and liability associated with its use. It is your responsibility to make sure your vehicle complies with all federal, state, and local emissions laws.

Federal and many state and local laws prohibit the removal, modification or rendering inoperative of any part of the design affecting emissions or safety on motor vehicles used on a public street or highway. Violation may result in a fine of up to $32,500 per vehicle (or possibly higher depending on changes in the law). All civil penalties and fines for removing your vehicle's emissions equipment are the sole responsibility of the end user.

No other applications besides off-road competition racing use are intended or implied. Depending on where you live, additional restrictions may apply. Check all applicable laws before installing or using.

Not available for sale or use in the state of California, Colorado and Arizona.

Product details

Product Overview

The 4" DPF Delete Pipe & Mini Maxx Tuner V2 is a complete exhaust and tuning solution that removes your truck's factory DPF and catalytic converter for maximum exhaust flow. Designed specifically for 2011-2016 6.6L Duramax LML Chevrolet Silverado and GMC Sierra 2500HD/3500HD pickups, this kit solves the common problems of DPF clogging, expensive regeneration cycles, and reduced fuel economy. The Mini Maxx Tuner V2 disables all DPF monitoring and regeneration functions so your engine runs cleanly without check engine lights or limp mode. Built from T409 stainless steel, the 4-inch race pipe is engineered for durability and corrosion resistance in demanding environments. This is an off-road and competition-use-only product that delivers noticeable power, torque, and fuel efficiency gains from the moment you install it.

Ideal For

  • Towing and Hauling: Reduced exhaust backpressure means more low-end torque for pulling heavy trailers and hauling payloads with confidence, while lower EGTs protect your engine under load.
  • Daily Driving: Improved throttle response and fuel efficiency (up to 18-19 mpg combined) make every commute more enjoyable and cost-effective, with no more DPF regeneration interruptions.
  • Off-Road Use: Eliminates DPF clogging issues common in dusty off-road environments, ensuring consistent power delivery on the trail without unexpected regeneration cycles.
  • Commercial Vehicles: Lower maintenance costs, reduced downtime from DPF failures, and improved fuel economy benefit fleet operators and work truck owners who put on high mileage.
  • Engine Performance Upgrades: Serves as a foundational upgrade that pairs perfectly with cold air intakes, intercoolers, and custom tuning for a complete performance build.
  • Long-Term Vehicle Ownership: Removes expensive DPF replacement costs (often $2,000+) and regeneration-related fuel waste over the life of your truck, lowering total cost of ownership.

Core Advantages

  • Increased Horsepower and Torque: Removing the DPF and CAT reduces exhaust backpressure, unlocking gains of up to 30-50 horsepower and 80-100 lb-ft of torque when paired with the Mini Maxx Tuner V2 for aggressive pulling power.
  • Improved Fuel Efficiency: Expect combined mileage to jump from 13-14 mpg (with a clogged or aging DPF) to 18-19 mpg after installation, saving you hundreds of dollars per year at the pump by eliminating fuel-wasting regeneration cycles.
  • Reduced Engine Temperature: Better exhaust flow lowers EGTs (exhaust gas temperatures) by 100-200°F under load, reducing heat soak and protecting your engine, turbo, and transmission during heavy towing.
  • Extended Engine Life: Lower operating temperatures and reduced backpressure decrease stress on internal engine components, the turbocharger, and the EGR system, contributing to longer service life and fewer costly repairs.
  • Direct Bolt-On Installation: Uses original-style hangers and includes all necessary clamps and hardware for a straightforward installation in about 1 hour with basic hand tools in your driveway or garage.
  • All-In-One Kit: Includes both the 4" DPF delete pipe and the Mini Maxx Tuner V2, so you have everything needed for a complete DPF/CAT removal and ECU recalibration — no additional purchases required.

Technical Specifications

  • Material: T409 Stainless Steel (magnetic — this is normal for T409, unlike T304)
  • Finish: Natural Stainless Steel
  • Pipe Diameter: 4 inches (for DPF and CAT removal)
  • Weight: Approximately 15 lbs (pipe only); tuner adds approximately 1 lb
  • Dimensions: 4" diameter; length engineered for direct DPF/CAT replacement on 2011-2016 LML pickups
  • Tuner: Mini Maxx Tuner V2 with pre-loaded DPF delete tunes for 6.6L Duramax LML
  • Clamp Type: V-band clamp (turbo direct pipe); will NOT fit 3-bolt flange models
  • Warranty: 1 Year Limited Warranty against manufacturing defects

Why Choose EGR Performance

  • Premium Quality Materials: Constructed from T409 stainless steel for superior durability and corrosion resistance compared to aluminized steel alternatives that rust out in salt and moisture.
  • Precision Engineering: Mandrel-bent tubing and precision TIG welds ensure exact fitment and maximum, uninterrupted exhaust flow for your 6.6L Duramax LML.
  • Rigorous Testing: Every kit undergoes fitment verification, pressure testing, and quality inspection to ensure reliable performance under extreme operating conditions.
  • Dedicated Customer Support: Email us at service@egrperformance.com for VIN-based fitment verification, installation guidance, and technical troubleshooting.
  • Fast Shipping from USA Warehouse
  • 1 Year Limited Warranty

Troubleshooting and Problem Solving

Common Issues After Installation

  • Check Engine Light: Most commonly caused by incomplete tune flashing or remaining DPF sensors still connected. Re-flash the Mini Maxx Tuner V2 and ensure all DPF-related codes are fully disabled.
  • Rough Idle: May occur if the tune does not match your specific truck configuration or if an air intake sensor was disturbed. Verify the correct tune file is loaded for your 2011-2016 LML and check all sensor connections.
  • Reduced Power: Often caused by an exhaust leak at the V-band clamp, a loose connection, or a failed sensor. Inspect all connections, tighten clamps, and verify the tuner is fully flashed.
  • Coolant/Oil Leaks: Unlikely from this install, but check that no coolant or oil lines were disturbed or pinched during exhaust removal. Inspect around the turbo and downpipe area.
  • Exhaust Leak or Rattling: Caused by loose V-band clamps, misaligned hangers, or insufficient torque on fasteners. Re-torque all hardware and adjust hanger positions to eliminate contact points.

Error Code Solutions

  • P2463: Diesel Particulate Filter Soot Accumulation — Ensure the Mini Maxx Tuner V2 has fully disabled DPF regeneration and all DPF monitoring functions. Re-flash the tune if necessary and clear codes.
  • P2002: Diesel Particulate Filter Efficiency Below Threshold — This code indicates the ECU no longer detects the DPF, which is normal after deletion. Confirm the tuner has disabled this monitoring code and clear it.
  • P0401: EGR Flow Insufficient Detected — Check EGR valve connections and ensure the tune properly manages EGR function. Clean or inspect the EGR valve and passages if the code persists after clearing.

How to Reset Check Engine Light After Installation

  1. Ensure the Mini Maxx Tuner V2 is properly connected to the OBD-II port and the ignition is in the ON position (engine off).
  2. Navigate to the "Diagnostics" or "Trouble Codes" menu on the Mini Maxx Tuner V2 touchscreen.
  3. Select "Read Codes" first to review any stored DTCs, then select "Clear All DTCs" and wait for the process to complete.
  4. Turn the ignition completely OFF and wait at least 30 seconds to allow the ECU to fully reset.
  5. Restart the vehicle and verify the check engine light is off. If the light returns, re-verify the correct tune is loaded and all DPF functions are disabled, then contact service@egrperformance.com.

What to Do If Your Vehicle Loses Power After Installation

  • Check for exhaust leaks at all V-band clamp connections and flange joints — a leak will cause incorrect air/fuel readings and reduced power.
  • Verify the Mini Maxx Tuner V2 is fully flashed with the correct tune matching your VIN and truck configuration (2011-2016 6.6L Duramax LML).
  • Ensure all sensors (MAF, MAP, EGT, oxygen) are properly connected and no wires were damaged or disconnected during exhaust removal.
  • Check that the air intake system is properly sealed, the air filter is clean, and no vacuum lines were disconnected or cracked during the install.
  • Monitor EGTs and boost levels using the Mini Maxx Tuner V2 gauges to rule out overheating-related power reduction or turbo issues.
  • If power loss persists after these checks, contact service@egrperformance.com with your VIN and a description of the issue for further technical support.

Long-Term Maintenance Tips

  • Regular Inspection: Every 5,000-10,000 miles, inspect all exhaust clamps, V-band connections, hangers, and flange joints for signs of loosening, corrosion, soot buildup (indicating a leak), or metal fatigue.
  • Routine Maintenance: Periodically clean the Mini Maxx Tuner V2 touchscreen with a microfiber cloth. Ensure the OBD-II port connection remains secure and check for firmware/tune updates from the tuner manufacturer every 6-12 months.
  • Wear Parts Replacement: V-band clamps and exhaust gaskets should be inspected every 30,000 miles and replaced immediately if they show signs of cracking, warping, or leakage. Hanger rubber bushings should be replaced if cracked or deteriorated.
  • Hardware Check: Every 10,000 miles (or after every major off-road trip or heavy towing excursion), verify that all bolts and fasteners are torqued to specification, especially the V-band clamp and hanger mounting bolts.
  • Storage Tips: If the vehicle will be stored for extended periods (30+ days), apply a light coat of high-temperature anti-seize to clamp threads to prevent seizing. Disconnect the Mini Maxx Tuner V2 from the OBD-II port to prevent battery drain. Store the tuner in a cool, dry place.
  • Warranty Reminder: "Following these maintenance guidelines will keep your 1 Year Limited Warranty valid."

Vehicle Fitment

This 4" DPF Delete Pipe & Mini Maxx Tuner V2 is specifically engineered for 2011-2016 Chevrolet Silverado 2500HD and 3500HD, as well as 2011-2016 GMC Sierra 2500HD and 3500HD pickup trucks equipped with the 6.6L Duramax LML diesel engine. The kit is designed for models equipped with a V-band clamp on the turbo direct pipe.

Fitment Notes and Special Conditions:

  • A minor trim may be required for installation on shorter wheelbase models.
  • Some factory fasteners may need to be reused — the kit includes all primary hardware but factory-specific bolts may be required in certain locations.
  • The Mini Maxx Tuner V2 must be flashed to your specific vehicle before the DPF delete pipe will function without error codes.

Exceptions — Will NOT Fit:

  • Cab & Chassis trucks — this kit is designed for pickup truck beds only.
  • 2015 models with a 3-bolt flange on the turbo direct pipe — only V-band clamp models are supported. Some 2015 models came with a 3-bolt flange from the factory; please verify before ordering.
  • Vehicles equipped with aftermarket exhaust systems that alter the DPF section dimensions.

⚠️ OFF-ROAD USE ONLY: This product deletes emissions control equipment and is NOT legal for on-road use under federal EPA regulations or in states following California CARB standards. It is intended exclusively for off-road, competition, and closed-course use.

For 100% fitment confirmation, please send your VIN number to service@egrperformance.com.

  1. Dispatch Time: Orders will be shipped within 24 hours after successful payment.
  2. Delivery Time: 2-5 business days after dispatch (delivery speed depends on proximity to warehouse location).
  3. Return Window:7 days for unsatisfactory items45 days for quality-related issues
  4. Refund Processing: Refunds will be processed back to your original payment method within 2-4 business days after receiving the automated refund confirmation email (subject to bank verification).

What is a DPF Delete Pipe?

A DPF delete pipe is a straight exhaust section that replaces the factory diesel particulate filter (DPF) and catalytic converter, allowing exhaust gases to flow more freely with less backpressure. When paired with a tuner like the Mini Maxx Tuner V2, it eliminates DPF regeneration cycles and related error codes. This modification is intended for off-road and competition use only.

How does a DPF Delete Pipe work?

A DPF delete pipe physically removes the restrictive DPF and catalytic converter from your exhaust system, reducing backpressure and allowing exhaust gases to exit more efficiently. The included Mini Maxx Tuner V2 then recalibrates your ECU to disable DPF monitoring, regeneration cycles, and associated error codes. The result is improved exhaust flow, lower EGTs, and increased engine performance across the powerband.

What are the benefits of a DPF Delete Pipe?

The primary benefits include increased horsepower and torque (up to 30-50 HP and 80-100 lb-ft), improved fuel efficiency (from 13-14 mpg to 18-19 mpg combined), lower exhaust gas temperatures, and reduced long-term maintenance costs. It also eliminates the risk of DPF clogging, especially in dusty or off-road environments where regeneration cannot complete properly.

Do I need a tuner for a DPF Delete?

Yes, a tuner is absolutely required when deleting the DPF. Without a tuner, your ECU will detect the missing DPF, trigger persistent check engine lights, enter reduced-power limp mode, and may cause engine damage from improper fueling. The included Mini Maxx Tuner V2 is pre-loaded with DPF delete tunes that disable all DPF monitoring and regeneration functions for your 6.6L Duramax LML.

How much horsepower does a DPF Delete add?

When paired with the Mini Maxx Tuner V2, a DPF delete typically adds 30-50 horsepower and 80-100 lb-ft of torque to a 6.6L Duramax LML engine. Actual gains vary depending on your truck's condition, existing modifications, elevation, and the specific tune level loaded. The reduction in exhaust backpressure and elimination of regeneration fueling are the primary drivers of these performance improvements.

How much MPG gain can I expect from a DPF Delete?

Most owners report an improvement from 13-14 mpg (with a clogged or aging DPF) to 18-19 mpg combined after DPF deletion. Actual results depend on driving habits, tire size, vehicle condition, terrain, and whether you tow frequently. Eliminating DPF regeneration cycles — which inject extra fuel into the exhaust to burn off soot — is a major contributor to the improved fuel economy.

Will a DPF Delete void my warranty?

Removing the DPF can potentially void portions of your vehicle's emissions-related warranty, as it modifies the factory emissions control system. However, the DPF delete pipe itself and the Mini Maxx Tuner V2 come with a 1 Year Limited Warranty against manufacturing defects from EGR Performance. We recommend consulting your vehicle's warranty documentation and understanding local regulations before proceeding with installation.

Is a DPF Delete legal in my state?

DPF deletion is illegal for on-road use under federal EPA regulations and in states that follow California CARB standards, including California, New York, and others with emissions testing programs. This product is strictly intended for off-road, competition, and closed-course use only. It is your responsibility to understand and comply with all local, state, and federal laws regarding emissions modifications on your vehicle.

How long does it take to install a DPF Delete?

Installation typically takes about 1 hour using basic hand tools on a flat surface such as your driveway or garage. If you have access to a vehicle lift, installation can be completed in 30-45 minutes. Budget 1-2 hours total to account for rusted fasteners, tune flashing time, and a final inspection. Professional installation is recommended if you are not comfortable with exhaust work or ECU tuning.

Can I install a DPF Delete myself?

Yes, this kit is designed for DIY installation with basic mechanical skills and standard hand tools. The pipe uses pre-installed original-style hangers for a direct bolt-on fit, and the Mini Maxx Tuner V2 connects via the OBD-II port with step-by-step on-screen instructions. However, if you encounter severely rusted fasteners, limited clearance, or are uncomfortable with ECU tuning, professional installation is highly recommended to avoid damage or improper fitment.

Will this DPF Delete fit my 2011-2016 Chevrolet Silverado 2500HD 6.6L Duramax LML?

Yes, this kit is specifically designed for 2011-2016 Chevrolet Silverado 2500HD and 3500HD with the 6.6L Duramax LML engine. It also fits GMC Sierra 2500HD and 3500HD models from the same years. Please note that it will NOT fit Cab & Chassis trucks or 2015 models equipped with a 3-bolt flange on the turbo direct pipe (V-band clamp only). For 100% confirmation, send your VIN to service@egrperformance.com.

How often should I maintain my DPF Delete?

We recommend inspecting all exhaust connections, V-band clamps, and hangers every 5,000-10,000 miles. Hardware should be checked and re-torqued every 10,000 miles, especially after heavy towing or off-road use. V-band clamps and gaskets should be inspected every 30,000 miles and replaced if worn or leaking. Keep the Mini Maxx Tuner V2 updated with the latest firmware and tune revisions for optimal performance.

What is the warranty on this DPF Delete Pipe & Mini Maxx Tuner V2?

This product comes with a 1 Year Limited Warranty against manufacturing defects. The warranty covers defects in materials and workmanship under normal use and proper installation. It does not cover damage caused by improper installation, misuse, off-road abuse, accidents, or modifications to the product. Following our recommended maintenance guidelines will keep your warranty valid throughout the coverage period.

Do you offer technical support?

Yes, we offer dedicated customer and technical support via email at service@egrperformance.com. Our team can assist with VIN-based fitment verification, installation guidance, troubleshooting error codes, tune-related questions, and warranty claims. We strive to respond to all inquiries within 24 business hours, and our support team has hands-on experience with Duramax LML platforms.

How long does shipping take?

We ship from our USA warehouse, and most orders are processed and shipped within 1-2 business days. Standard ground shipping typically takes 3-5 business days within the continental United States. Expedited shipping options (2-day and overnight) are available at checkout for an additional fee. You will receive a tracking number via email once your order ships, so you can monitor delivery progress.

Can I return this DPF Delete if it doesn't fit?

Yes, we accept returns for unused products in their original, unopened packaging within 30 days of purchase. To avoid fitment issues entirely, we strongly recommend verifying compatibility by sending your VIN to service@egrperformance.com before placing your order. Custom or special-order items may be subject to a restocking fee. Please refer to our full return policy on our website for complete details and instructions.

Installation Difficulty Level

Moderate

Estimated Installation Time

1-2 hours (approximately 1 hour with basic hand tools on level ground; faster with a vehicle lift)

Required Tools

  • Socket Set (metric and standard, including deep sockets)
  • Torque Wrench
  • Screwdrivers (flathead and Phillips)
  • Pliers (needle-nose and locking)
  • Penetrating Oil (for rusted exhaust fasteners)
  • Jack and Jack Stands (optional but recommended for additional clearance)
  • Safety Glasses and Work Gloves
  • Rubber Mallet (for adjusting hanger positions)

Step-by-Step Installation Overview

  1. Disconnect and Prepare: Disconnect the negative battery terminal. Safely raise and support the vehicle with jack stands. Spray penetrating oil on all exhaust fasteners, V-band clamps, and hanger rods. Allow 10-15 minutes for penetration.
  2. Remove Factory DPF and CAT: Loosen and remove the V-band clamp at the turbo direct pipe. Unbolt the rear flange connection and remove the hangers securing the DPF/CAT assembly. Carefully lower the assembly from the vehicle, noting the orientation of all sensors and brackets.
  3. Install the New 4" DPF Delete Pipe: Position the new T409 stainless steel delete pipe in place. Secure the front connection with the provided V-band clamp. Hang the pipe using the pre-installed original-style hangers. Reuse factory fasteners where needed. A trim may be required on shorter wheelbase models.
  4. Check Clearances and Connections: Verify all connections are tight and properly aligned. Ensure adequate clearance from heat-sensitive components such as brake lines, fuel lines, and wiring harnesses. Lower the vehicle back to the ground.
  5. Flash the Mini Maxx Tuner V2: Connect the Mini Maxx Tuner V2 to the OBD-II port. Follow the on-screen prompts to select your vehicle (2011-2016 6.6L Duramax LML) and flash the DPF delete tune. This will disable DPF regeneration, monitoring, and all related error codes. Reconnect the battery and start the vehicle to confirm normal operation.

Important Note:No printed installation instructions are included. Professional installation is highly recommended. If you need technical support, please contact us at service@egrperformance.com.