DPF/EGR Delete Kit for for 2007.5-2010 LMM 6.6L Duramax

Fitment

• 2007-2010 GMC Sierra 2500 3500 HD 6.6 LMM Duramax Diesel
• 2007-2010 Chevrolet Silverado 2500 3500 HD 6.6 LMM Duramax Diesel
  

Description

This 2007.5-2010 LMM 6.6L Duramax DPF/EGR Delete Kit is designed to remove the troublesome factory emissions systems, unlocking noticeable improvements in horsepower, torque, and fuel efficiency. With the failure-prone DPF and EGR components eliminated, you'll enjoy smoother throttle response, lower engine bay temperatures, and no more forced regenerations.

Key Features

• High-Performance Exhaust – Eliminates DPF restriction for better turbo response.
• Reduces Carbon Buildup – Stops soot from recirculating into the intake.
• Improved Fuel Economy – Optimizes combustion efficiency by reducing backpressure.
• Extends Engine Life – Prevents heat and soot damage, lowering maintenance costs.
  

Specification

With or Without High Flow Intake Elbow Pipe?

EGR Delete Kit WITH High Flow Intake Elbow Pipe

• Improved Airflow: Reduces intake restriction, increases air volume, and enhances turbo response for smoother power delivery.
• Lower Intake Temps: Optimized elbow design helps reduce air intake temperatures, improving combustion efficiency.
• Performance-Oriented: Ideal for tuned engines, larger turbos, or other upgrades to maximize power potential.

EGR Delete Kit WITHOUT High Flow Intake Elbow Pipe

• EGR Removal Only: Solves carbon buildup and overheating issues but retains the stock intake system.
• Budget-Friendly: Lower cost, suitable for users not seeking extra airflow upgrades.
• Daily Driving Focus: Meets basic power and fuel economy needs but offers limited airflow improvement.

Best For

• High-flow version: Performance builds, towing, or tuned trucks needing better airflow.
• Standard version: Daily drivers prioritizing reliability and basic EGR-related fixes.

How to Choose a DPF Delete?

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

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

Types of DPF Delete Kits

DPF Race Delete

• 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

Downpipe-Back Delete

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

Turbo-Back Delete

• Full system replacement starting from the turbo outlet
• Includes a high-flow downpipe for maximum efficiency
• Reduces turbo lag and boosts top-end power
• Top choice for tuned or high-performance engines

Dual Exit (5" only)

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

Muffler vs. No Muffler

With Muffler

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

Straight Pipe (No Muffler)

• 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

Q1. Is DPF & EGR Delete Legal?
A1. ⚠ For Off-Road/Race Use Only. In most regions, deleting emissions systems is illegal for on-road vehicles. Check local laws.

Q2. Do I Need a Tune After Installation?
A2. Yes, an ECU tune is required to disable error codes and optimize performance.

Q3. Will Deleting Affect Turbo Lifespan?
A3. On the contrary, it may extend turbo life by reducing exhaust backpressure and stress.

Q4. How Much Fuel Economy Improvement?
A4. Typically 10-15% improvement, depending on driving style and tuning.